Home / 90,835,569.18-136,205,472.24-39,657,800.88

Finding the Fourth Proportional to 90,835,569.18, 136,205,472.24 and 39,657,800.88

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Solution

The fourth proportional to 90,835,569.18, 136,205,472.24 and 39,657,800.88 is: 59,465,796.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,835,569.18 : 136,205,472.24 = 39,657,800.88 : x
  2. Step 2: Convert to fraction form
    90,835,569.18/136,205,472.24 = 39,657,800.88/x
  3. Step 3: Cross multiply
    90,835,569.18x = 136,205,472.24 × 39,657,800.88
  4. Step 4: Simplify right side
    90,835,569.18x = 5,401,609,496,860,288
  5. Step 5: Solve for x
    x = 5,401,609,496,860,288/90,835,569.18
  6. Step 6: Final answer
    x = 59,465,796.78

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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.