Home / 18,715,344.30-28,070,942.85-15,343,670.70

Finding the Fourth Proportional to 18,715,344.30, 28,070,942.85 and 15,343,670.70

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Solution

The fourth proportional to 18,715,344.30, 28,070,942.85 and 15,343,670.70 is: 23,013,806.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715,344.30 : 28,070,942.85 = 15,343,670.70 : x
  2. Step 2: Convert to fraction form
    18,715,344.30/28,070,942.85 = 15,343,670.70/x
  3. Step 3: Cross multiply
    18,715,344.30x = 28,070,942.85 × 15,343,670.70
  4. Step 4: Simplify right side
    18,715,344.30x = 430,711,303,328,919.50
  5. Step 5: Solve for x
    x = 430,711,303,328,919.50/18,715,344.30
  6. Step 6: Final answer
    x = 23,013,806.02

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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.