Home / 659,025,535.41-909,395,132.15-391,055,194.70

Finding the Fourth Proportional to 659,025,535.41, 909,395,132.15 and 391,055,194.70

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Solution

The fourth proportional to 659,025,535.41, 909,395,132.15 and 391,055,194.70 is: 539,620,502.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,025,535.41 : 909,395,132.15 = 391,055,194.70 : x
  2. Step 2: Convert to fraction form
    659,025,535.41/909,395,132.15 = 391,055,194.70/x
  3. Step 3: Cross multiply
    659,025,535.41x = 909,395,132.15 × 391,055,194.70
  4. Step 4: Simplify right side
    659,025,535.41x = 355,623,690,459,789,760
  5. Step 5: Solve for x
    x = 355,623,690,459,789,760/659,025,535.41
  6. Step 6: Final answer
    x = 539,620,502.32

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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.