Home / 1,935,366,945.10-2,903,050,417.65-642,902,433.10

Finding the Fourth Proportional to 1,935,366,945.10, 2,903,050,417.65 and 642,902,433.10

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Solution

The fourth proportional to 1,935,366,945.10, 2,903,050,417.65 and 642,902,433.10 is: 964,353,649.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935,366,945.10 : 2,903,050,417.65 = 642,902,433.10 : x
  2. Step 2: Convert to fraction form
    1,935,366,945.10/2,903,050,417.65 = 642,902,433.10/x
  3. Step 3: Cross multiply
    1,935,366,945.10x = 2,903,050,417.65 × 642,902,433.10
  4. Step 4: Simplify right side
    1,935,366,945.10x = 1,866,378,176,919,156,224
  5. Step 5: Solve for x
    x = 1,866,378,176,919,156,224/1,935,366,945.10
  6. Step 6: Final answer
    x = 964,353,649.65

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Half scale
Find fourth proportional to 3,870,733,890.20, 5,806,100,835.30 and 1,285,804,866.20
Double scale
Find fourth proportional to 1,935,366,946.10, 2,903,050,419.15 and 642,902,434.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.