Home / 81,919,073.71-122,877,769.50-47,353,481.59

Finding the Fourth Proportional to 81,919,073.71, 122,877,769.50 and 47,353,481.59

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Solution

The fourth proportional to 81,919,073.71, 122,877,769.50 and 47,353,481.59 is: 71,029,736.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,919,073.71 : 122,877,769.50 = 47,353,481.59 : x
  2. Step 2: Convert to fraction form
    81,919,073.71/122,877,769.50 = 47,353,481.59/x
  3. Step 3: Cross multiply
    81,919,073.71x = 122,877,769.50 × 47,353,481.59
  4. Step 4: Simplify right side
    81,919,073.71x = 5,818,690,195,838,514
  5. Step 5: Solve for x
    x = 5,818,690,195,838,514/81,919,073.71
  6. Step 6: Final answer
    x = 71,029,736.21

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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.