Home / 20,776,505.40-31,164,758.10-13,841,200.35

Finding the Fourth Proportional to 20,776,505.40, 31,164,758.10 and 13,841,200.35

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Solution

The fourth proportional to 20,776,505.40, 31,164,758.10 and 13,841,200.35 is: 20,761,800.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,505.40 : 31,164,758.10 = 13,841,200.35 : x
  2. Step 2: Convert to fraction form
    20,776,505.40/31,164,758.10 = 13,841,200.35/x
  3. Step 3: Cross multiply
    20,776,505.40x = 31,164,758.10 × 13,841,200.35
  4. Step 4: Simplify right side
    20,776,505.40x = 431,357,660,721,385.38
  5. Step 5: Solve for x
    x = 431,357,660,721,385.38/20,776,505.40
  6. Step 6: Final answer
    x = 20,761,800.53

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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.