Home / 752,970,947.17-1,039,125,140.61-418,457,568.76

Finding the Fourth Proportional to 752,970,947.17, 1,039,125,140.61 and 418,457,568.76

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Solution

The fourth proportional to 752,970,947.17, 1,039,125,140.61 and 418,457,568.76 is: 577,485,468.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,970,947.17 : 1,039,125,140.61 = 418,457,568.76 : x
  2. Step 2: Convert to fraction form
    752,970,947.17/1,039,125,140.61 = 418,457,568.76/x
  3. Step 3: Cross multiply
    752,970,947.17x = 1,039,125,140.61 × 418,457,568.76
  4. Step 4: Simplify right side
    752,970,947.17x = 434,829,779,977,053,760
  5. Step 5: Solve for x
    x = 434,829,779,977,053,760/752,970,947.17
  6. Step 6: Final answer
    x = 577,485,468.21

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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.