Home / 12,120,449.12-18,180,694.28-9,706,952.48

Finding the Fourth Proportional to 12,120,449.12, 18,180,694.28 and 9,706,952.48

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Solution

The fourth proportional to 12,120,449.12, 18,180,694.28 and 9,706,952.48 is: 14,560,445.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120,449.12 : 18,180,694.28 = 9,706,952.48 : x
  2. Step 2: Convert to fraction form
    12,120,449.12/18,180,694.28 = 9,706,952.48/x
  3. Step 3: Cross multiply
    12,120,449.12x = 18,180,694.28 × 9,706,952.48
  4. Step 4: Simplify right side
    12,120,449.12x = 176,479,135,429,367.84
  5. Step 5: Solve for x
    x = 176,479,135,429,367.84/12,120,449.12
  6. Step 6: Final answer
    x = 14,560,445.22

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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.