Home / 76,716,614.39-115,120,321.18-28,228,517.51

Finding the Fourth Proportional to 76,716,614.39, 115,120,321.18 and 28,228,517.51

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Solution

The fourth proportional to 76,716,614.39, 115,120,321.18 and 28,228,517.51 is: 42,359,481.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,716,614.39 : 115,120,321.18 = 28,228,517.51 : x
  2. Step 2: Convert to fraction form
    76,716,614.39/115,120,321.18 = 28,228,517.51/x
  3. Step 3: Cross multiply
    76,716,614.39x = 115,120,321.18 × 28,228,517.51
  4. Step 4: Simplify right side
    76,716,614.39x = 3,249,676,001,540,280.50
  5. Step 5: Solve for x
    x = 3,249,676,001,540,280.50/76,716,614.39
  6. Step 6: Final answer
    x = 42,359,481.42

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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.