Home / 1,581,132,431.43-2,181,962,962.19-876,329,915.20

Finding the Fourth Proportional to 1,581,132,431.43, 2,181,962,962.19 and 876,329,915.20

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Solution

The fourth proportional to 1,581,132,431.43, 2,181,962,962.19 and 876,329,915.20 is: 1,209,335,397.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,132,431.43 : 2,181,962,962.19 = 876,329,915.20 : x
  2. Step 2: Convert to fraction form
    1,581,132,431.43/2,181,962,962.19 = 876,329,915.20/x
  3. Step 3: Cross multiply
    1,581,132,431.43x = 2,181,962,962.19 × 876,329,915.20
  4. Step 4: Simplify right side
    1,581,132,431.43x = 1,912,119,417,622,239,488
  5. Step 5: Solve for x
    x = 1,912,119,417,622,239,488/1,581,132,431.43
  6. Step 6: Final answer
    x = 1,209,335,397.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.