Home / 10,406,538.20-15,609,807.30-8,493,350.60

Finding the Fourth Proportional to 10,406,538.20, 15,609,807.30 and 8,493,350.60

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Solution

The fourth proportional to 10,406,538.20, 15,609,807.30 and 8,493,350.60 is: 12,740,025.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,406,538.20 : 15,609,807.30 = 8,493,350.60 : x
  2. Step 2: Convert to fraction form
    10,406,538.20/15,609,807.30 = 8,493,350.60/x
  3. Step 3: Cross multiply
    10,406,538.20x = 15,609,807.30 × 8,493,350.60
  4. Step 4: Simplify right side
    10,406,538.20x = 132,579,566,197,339.38
  5. Step 5: Solve for x
    x = 132,579,566,197,339.38/10,406,538.20
  6. Step 6: Final answer
    x = 12,740,025.90

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Similar ratio
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1.5x scale

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.