Home / 12,361,489.60-18,550,107.60-7,243,909.60

Finding the Fourth Proportional to 12,361,489.60, 18,550,107.60 and 7,243,909.60

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Solution

The fourth proportional to 12,361,489.60, 18,550,107.60 and 7,243,909.60 is: 10,870,478.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,361,489.60 : 18,550,107.60 = 7,243,909.60 : x
  2. Step 2: Convert to fraction form
    12,361,489.60/18,550,107.60 = 7,243,909.60/x
  3. Step 3: Cross multiply
    12,361,489.60x = 18,550,107.60 × 7,243,909.60
  4. Step 4: Simplify right side
    12,361,489.60x = 134,375,302,524,672.97
  5. Step 5: Solve for x
    x = 134,375,302,524,672.97/12,361,489.60
  6. Step 6: Final answer
    x = 10,870,478.14

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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.