Home / 458,862,536.28-688,428,115.51-147,963,899.61

Finding the Fourth Proportional to 458,862,536.28, 688,428,115.51 and 147,963,899.61

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Solution

The fourth proportional to 458,862,536.28, 688,428,115.51 and 147,963,899.61 is: 221,989,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,862,536.28 : 688,428,115.51 = 147,963,899.61 : x
  2. Step 2: Convert to fraction form
    458,862,536.28/688,428,115.51 = 147,963,899.61/x
  3. Step 3: Cross multiply
    458,862,536.28x = 688,428,115.51 × 147,963,899.61
  4. Step 4: Simplify right side
    458,862,536.28x = 101,862,508,572,023,136
  5. Step 5: Solve for x
    x = 101,862,508,572,023,136/458,862,536.28
  6. Step 6: Final answer
    x = 221,989,159.10

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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.