Home / 15,239,117.76-21,029,996.75-8,712,883.87

Finding the Fourth Proportional to 15,239,117.76, 21,029,996.75 and 8,712,883.87

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Solution

The fourth proportional to 15,239,117.76, 21,029,996.75 and 8,712,883.87 is: 12,023,787.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239,117.76 : 21,029,996.75 = 8,712,883.87 : x
  2. Step 2: Convert to fraction form
    15,239,117.76/21,029,996.75 = 8,712,883.87/x
  3. Step 3: Cross multiply
    15,239,117.76x = 21,029,996.75 × 8,712,883.87
  4. Step 4: Simplify right side
    15,239,117.76x = 183,231,919,469,227.41
  5. Step 5: Solve for x
    x = 183,231,919,469,227.41/15,239,117.76
  6. Step 6: Final answer
    x = 12,023,787.88

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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.