Home / 12,581,373.18-18,868,939.65-5,392,091.82

Finding the Fourth Proportional to 12,581,373.18, 18,868,939.65 and 5,392,091.82

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Solution

The fourth proportional to 12,581,373.18, 18,868,939.65 and 5,392,091.82 is: 8,086,800.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581,373.18 : 18,868,939.65 = 5,392,091.82 : x
  2. Step 2: Convert to fraction form
    12,581,373.18/18,868,939.65 = 5,392,091.82/x
  3. Step 3: Cross multiply
    12,581,373.18x = 18,868,939.65 × 5,392,091.82
  4. Step 4: Simplify right side
    12,581,373.18x = 101,743,055,138,838.66
  5. Step 5: Solve for x
    x = 101,743,055,138,838.66/12,581,373.18
  6. Step 6: Final answer
    x = 8,086,800.52

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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.