Home / 1,263,276,006.20-1,894,914,009.30-445,116,390.20

Finding the Fourth Proportional to 1,263,276,006.20, 1,894,914,009.30 and 445,116,390.20

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Solution

The fourth proportional to 1,263,276,006.20, 1,894,914,009.30 and 445,116,390.20 is: 667,674,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,276,006.20 : 1,894,914,009.30 = 445,116,390.20 : x
  2. Step 2: Convert to fraction form
    1,263,276,006.20/1,894,914,009.30 = 445,116,390.20/x
  3. Step 3: Cross multiply
    1,263,276,006.20x = 1,894,914,009.30 × 445,116,390.20
  4. Step 4: Simplify right side
    1,263,276,006.20x = 843,457,283,559,025,152
  5. Step 5: Solve for x
    x = 843,457,283,559,025,152/1,263,276,006.20
  6. Step 6: Final answer
    x = 667,674,585.30

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Half scale
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Double scale
Find fourth proportional to 1,263,276,007.20, 1,894,914,010.80 and 445,116,391.20
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.