Home / 861,096,929.28-1,187,940,983.04-526,584,076.80

Finding the Fourth Proportional to 861,096,929.28, 1,187,940,983.04 and 526,584,076.80

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Solution

The fourth proportional to 861,096,929.28, 1,187,940,983.04 and 526,584,076.80 is: 726,458,061.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,096,929.28 : 1,187,940,983.04 = 526,584,076.80 : x
  2. Step 2: Convert to fraction form
    861,096,929.28/1,187,940,983.04 = 526,584,076.80/x
  3. Step 3: Cross multiply
    861,096,929.28x = 1,187,940,983.04 × 526,584,076.80
  4. Step 4: Simplify right side
    861,096,929.28x = 625,550,805,847,002,880
  5. Step 5: Solve for x
    x = 625,550,805,847,002,880/861,096,929.28
  6. Step 6: Final answer
    x = 726,458,061.31

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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.