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Finding the Fourth Proportional to 9,171,609.45, 12,656,978.42 and 5,041,814.65

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Solution

The fourth proportional to 9,171,609.45, 12,656,978.42 and 5,041,814.65 is: 6,957,790.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171,609.45 : 12,656,978.42 = 5,041,814.65 : x
  2. Step 2: Convert to fraction form
    9,171,609.45/12,656,978.42 = 5,041,814.65/x
  3. Step 3: Cross multiply
    9,171,609.45x = 12,656,978.42 × 5,041,814.65
  4. Step 4: Simplify right side
    9,171,609.45x = 63,814,139,215,618.71
  5. Step 5: Solve for x
    x = 63,814,139,215,618.71/9,171,609.45
  6. Step 6: Final answer
    x = 6,957,790.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.