Home / 18,715,343.80-28,070,942.10-15,343,670.20

Finding the Fourth Proportional to 18,715,343.80, 28,070,942.10 and 15,343,670.20

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Solution

The fourth proportional to 18,715,343.80, 28,070,942.10 and 15,343,670.20 is: 23,013,805.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715,343.80 : 28,070,942.10 = 15,343,670.20 : x
  2. Step 2: Convert to fraction form
    18,715,343.80/28,070,942.10 = 15,343,670.20/x
  3. Step 3: Cross multiply
    18,715,343.80x = 28,070,942.10 × 15,343,670.20
  4. Step 4: Simplify right side
    18,715,343.80x = 430,711,277,785,695.44
  5. Step 5: Solve for x
    x = 430,711,277,785,695.44/18,715,343.80
  6. Step 6: Final answer
    x = 23,013,805.27

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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.