Home / 1,147,420,121.40-1,721,130,182.10-371,144,252.70

Finding the Fourth Proportional to 1,147,420,121.40, 1,721,130,182.10 and 371,144,252.70

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Solution

The fourth proportional to 1,147,420,121.40, 1,721,130,182.10 and 371,144,252.70 is: 556,716,379.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,420,121.40 : 1,721,130,182.10 = 371,144,252.70 : x
  2. Step 2: Convert to fraction form
    1,147,420,121.40/1,721,130,182.10 = 371,144,252.70/x
  3. Step 3: Cross multiply
    1,147,420,121.40x = 1,721,130,182.10 × 371,144,252.70
  4. Step 4: Simplify right side
    1,147,420,121.40x = 638,787,575,234,919,424
  5. Step 5: Solve for x
    x = 638,787,575,234,919,424/1,147,420,121.40
  6. Step 6: Final answer
    x = 556,716,379.05

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Double scale
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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.