Home / 20,743,241.70-31,114,862.55-19,680,359.70

Finding the Fourth Proportional to 20,743,241.70, 31,114,862.55 and 19,680,359.70

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Solution

The fourth proportional to 20,743,241.70, 31,114,862.55 and 19,680,359.70 is: 29,520,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743,241.70 : 31,114,862.55 = 19,680,359.70 : x
  2. Step 2: Convert to fraction form
    20,743,241.70/31,114,862.55 = 19,680,359.70/x
  3. Step 3: Cross multiply
    20,743,241.70x = 31,114,862.55 × 19,680,359.70
  4. Step 4: Simplify right side
    20,743,241.70x = 612,351,687,000,059.25
  5. Step 5: Solve for x
    x = 612,351,687,000,059.25/20,743,241.70
  6. Step 6: Final answer
    x = 29,520,539.55

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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.