Home / 12,285,910.60-18,442,862.70-7,240,064.20

Finding the Fourth Proportional to 12,285,910.60, 18,442,862.70 and 7,240,064.20

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Solution

The fourth proportional to 12,285,910.60, 18,442,862.70 and 7,240,064.20 is: 10,868,344.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285,910.60 : 18,442,862.70 = 7,240,064.20 : x
  2. Step 2: Convert to fraction form
    12,285,910.60/18,442,862.70 = 7,240,064.20/x
  3. Step 3: Cross multiply
    12,285,910.60x = 18,442,862.70 × 7,240,064.20
  4. Step 4: Simplify right side
    12,285,910.60x = 133,527,509,979,785.34
  5. Step 5: Solve for x
    x = 133,527,509,979,785.34/12,285,910.60
  6. Step 6: Final answer
    x = 10,868,344.59

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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.