Home / 527,472,006.80-791,208,010.20-425,435,334.80

Finding the Fourth Proportional to 527,472,006.80, 791,208,010.20 and 425,435,334.80

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Solution

The fourth proportional to 527,472,006.80, 791,208,010.20 and 425,435,334.80 is: 638,153,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,472,006.80 : 791,208,010.20 = 425,435,334.80 : x
  2. Step 2: Convert to fraction form
    527,472,006.80/791,208,010.20 = 425,435,334.80/x
  3. Step 3: Cross multiply
    527,472,006.80x = 791,208,010.20 × 425,435,334.80
  4. Step 4: Simplify right side
    527,472,006.80x = 336,607,844,715,878,848
  5. Step 5: Solve for x
    x = 336,607,844,715,878,848/527,472,006.80
  6. Step 6: Final answer
    x = 638,153,002.20

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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.