Home / 752,970,943.69-1,039,125,135.80-418,457,565.29

Finding the Fourth Proportional to 752,970,943.69, 1,039,125,135.80 and 418,457,565.29

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Solution

The fourth proportional to 752,970,943.69, 1,039,125,135.80 and 418,457,565.29 is: 577,485,463.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,970,943.69 : 1,039,125,135.80 = 418,457,565.29 : x
  2. Step 2: Convert to fraction form
    752,970,943.69/1,039,125,135.80 = 418,457,565.29/x
  3. Step 3: Cross multiply
    752,970,943.69x = 1,039,125,135.80 × 418,457,565.29
  4. Step 4: Simplify right side
    752,970,943.69x = 434,829,774,358,508,608
  5. Step 5: Solve for x
    x = 434,829,774,358,508,608/752,970,943.69
  6. Step 6: Final answer
    x = 577,485,463.42

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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.