Home / 15,111,128.92-22,664,478.88-7,432,712.71

Finding the Fourth Proportional to 15,111,128.92, 22,664,478.88 and 7,432,712.71

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Solution

The fourth proportional to 15,111,128.92, 22,664,478.88 and 7,432,712.71 is: 11,147,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,111,128.92 : 22,664,478.88 = 7,432,712.71 : x
  2. Step 2: Convert to fraction form
    15,111,128.92/22,664,478.88 = 7,432,712.71/x
  3. Step 3: Cross multiply
    15,111,128.92x = 22,664,478.88 × 7,432,712.71
  4. Step 4: Simplify right side
    15,111,128.92x = 168,458,560,218,320.78
  5. Step 5: Solve for x
    x = 168,458,560,218,320.78/15,111,128.92
  6. Step 6: Final answer
    x = 11,147,979.82

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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.