Home / 15,662,899.89-21,614,476.15-8,693,168.57

Finding the Fourth Proportional to 15,662,899.89, 21,614,476.15 and 8,693,168.57

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Solution

The fourth proportional to 15,662,899.89, 21,614,476.15 and 8,693,168.57 is: 11,996,391.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,662,899.89 : 21,614,476.15 = 8,693,168.57 : x
  2. Step 2: Convert to fraction form
    15,662,899.89/21,614,476.15 = 8,693,168.57/x
  3. Step 3: Cross multiply
    15,662,899.89x = 21,614,476.15 × 8,693,168.57
  4. Step 4: Simplify right side
    15,662,899.89x = 187,898,284,680,728.75
  5. Step 5: Solve for x
    x = 187,898,284,680,728.75/15,662,899.89
  6. Step 6: Final answer
    x = 11,996,391.86

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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.