Home / 15,187,817.75-20,959,244.06-8,218,495.35

Finding the Fourth Proportional to 15,187,817.75, 20,959,244.06 and 8,218,495.35

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Solution

The fourth proportional to 15,187,817.75, 20,959,244.06 and 8,218,495.35 is: 11,341,553.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187,817.75 : 20,959,244.06 = 8,218,495.35 : x
  2. Step 2: Convert to fraction form
    15,187,817.75/20,959,244.06 = 8,218,495.35/x
  3. Step 3: Cross multiply
    15,187,817.75x = 20,959,244.06 × 8,218,495.35
  4. Step 4: Simplify right side
    15,187,817.75x = 172,253,449,805,532.62
  5. Step 5: Solve for x
    x = 172,253,449,805,532.62/15,187,817.75
  6. Step 6: Final answer
    x = 11,341,553.65

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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.