Home / 20,782,912.30-31,174,368.45-15,744,064.30

Finding the Fourth Proportional to 20,782,912.30, 31,174,368.45 and 15,744,064.30

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Solution

The fourth proportional to 20,782,912.30, 31,174,368.45 and 15,744,064.30 is: 23,616,096.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,782,912.30 : 31,174,368.45 = 15,744,064.30 : x
  2. Step 2: Convert to fraction form
    20,782,912.30/31,174,368.45 = 15,744,064.30/x
  3. Step 3: Cross multiply
    20,782,912.30x = 31,174,368.45 × 15,744,064.30
  4. Step 4: Simplify right side
    20,782,912.30x = 490,811,261,388,691.38
  5. Step 5: Solve for x
    x = 490,811,261,388,691.38/20,782,912.30
  6. Step 6: Final answer
    x = 23,616,096.45

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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.