Home / 20,912,941.80-31,342,691.88-16,871,335.56

Finding the Fourth Proportional to 20,912,941.80, 31,342,691.88 and 16,871,335.56

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Solution

The fourth proportional to 20,912,941.80, 31,342,691.88 and 16,871,335.56 is: 25,285,446.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,941.80 : 31,342,691.88 = 16,871,335.56 : x
  2. Step 2: Convert to fraction form
    20,912,941.80/31,342,691.88 = 16,871,335.56/x
  3. Step 3: Cross multiply
    20,912,941.80x = 31,342,691.88 × 16,871,335.56
  4. Step 4: Simplify right side
    20,912,941.80x = 528,793,072,061,167.19
  5. Step 5: Solve for x
    x = 528,793,072,061,167.19/20,912,941.80
  6. Step 6: Final answer
    x = 25,285,446.55

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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.