Home / 12,300,505.30-18,469,719.69-10,406,305.72

Finding the Fourth Proportional to 12,300,505.30, 18,469,719.69 and 10,406,305.72

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Solution

The fourth proportional to 12,300,505.30, 18,469,719.69 and 10,406,305.72 is: 15,625,500.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,300,505.30 : 18,469,719.69 = 10,406,305.72 : x
  2. Step 2: Convert to fraction form
    12,300,505.30/18,469,719.69 = 10,406,305.72/x
  3. Step 3: Cross multiply
    12,300,505.30x = 18,469,719.69 × 10,406,305.72
  4. Step 4: Simplify right side
    12,300,505.30x = 192,201,549,656,843.66
  5. Step 5: Solve for x
    x = 192,201,549,656,843.66/12,300,505.30
  6. Step 6: Final answer
    x = 15,625,500.33

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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.