Home / 12,528,925.92-17,290,392.24-7,022,401.68

Finding the Fourth Proportional to 12,528,925.92, 17,290,392.24 and 7,022,401.68

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Solution

The fourth proportional to 12,528,925.92, 17,290,392.24 and 7,022,401.68 is: 9,691,180.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,925.92 : 17,290,392.24 = 7,022,401.68 : x
  2. Step 2: Convert to fraction form
    12,528,925.92/17,290,392.24 = 7,022,401.68/x
  3. Step 3: Cross multiply
    12,528,925.92x = 17,290,392.24 × 7,022,401.68
  4. Step 4: Simplify right side
    12,528,925.92x = 121,420,079,514,034.95
  5. Step 5: Solve for x
    x = 121,420,079,514,034.95/12,528,925.92
  6. Step 6: Final answer
    x = 9,691,180.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.