Home / 91,609,057-126,420,761.10-52,451,434.36

Finding the Fourth Proportional to 91,609,057, 126,420,761.10 and 52,451,434.36

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Solution

The fourth proportional to 91,609,057, 126,420,761.10 and 52,451,434.36 is: 72,383,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,609,057 : 126,420,761.10 = 52,451,434.36 : x
  2. Step 2: Convert to fraction form
    91,609,057/126,420,761.10 = 52,451,434.36/x
  3. Step 3: Cross multiply
    91,609,057x = 126,420,761.10 × 52,451,434.36
  4. Step 4: Simplify right side
    91,609,057x = 6,630,950,252,577,891
  5. Step 5: Solve for x
    x = 6,630,950,252,577,891/91,609,057
  6. Step 6: Final answer
    x = 72,383,129.68

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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.