Home / 12,115,376.20-18,173,064.30-7,332,407.20

Finding the Fourth Proportional to 12,115,376.20, 18,173,064.30 and 7,332,407.20

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Solution

The fourth proportional to 12,115,376.20, 18,173,064.30 and 7,332,407.20 is: 10,998,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,376.20 : 18,173,064.30 = 7,332,407.20 : x
  2. Step 2: Convert to fraction form
    12,115,376.20/18,173,064.30 = 7,332,407.20/x
  3. Step 3: Cross multiply
    12,115,376.20x = 18,173,064.30 × 7,332,407.20
  4. Step 4: Simplify right side
    12,115,376.20x = 133,252,307,519,382.97
  5. Step 5: Solve for x
    x = 133,252,307,519,382.97/12,115,376.20
  6. Step 6: Final answer
    x = 10,998,610.80

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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.