Home / 440,578,831.52-660,758,372.40-129,624,572

Finding the Fourth Proportional to 440,578,831.52, 660,758,372.40 and 129,624,572

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Solution

The fourth proportional to 440,578,831.52, 660,758,372.40 and 129,624,572 is: 194,404,531.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,578,831.52 : 660,758,372.40 = 129,624,572 : x
  2. Step 2: Convert to fraction form
    440,578,831.52/660,758,372.40 = 129,624,572/x
  3. Step 3: Cross multiply
    440,578,831.52x = 660,758,372.40 × 129,624,572
  4. Step 4: Simplify right side
    440,578,831.52x = 85,650,521,217,766,608
  5. Step 5: Solve for x
    x = 85,650,521,217,766,608/440,578,831.52
  6. Step 6: Final answer
    x = 194,404,531.24

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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.