Home / 500,768,337.20-690,261,828.52-394,748,859.36

Finding the Fourth Proportional to 500,768,337.20, 690,261,828.52 and 394,748,859.36

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Solution

The fourth proportional to 500,768,337.20, 690,261,828.52 and 394,748,859.36 is: 544,123,997.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,768,337.20 : 690,261,828.52 = 394,748,859.36 : x
  2. Step 2: Convert to fraction form
    500,768,337.20/690,261,828.52 = 394,748,859.36/x
  3. Step 3: Cross multiply
    500,768,337.20x = 690,261,828.52 × 394,748,859.36
  4. Step 4: Simplify right side
    500,768,337.20x = 272,480,069,468,017,920
  5. Step 5: Solve for x
    x = 272,480,069,468,017,920/500,768,337.20
  6. Step 6: Final answer
    x = 544,123,997.52

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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.