Home / 12,272,780.92-16,932,684.60-7,115,113.24

Finding the Fourth Proportional to 12,272,780.92, 16,932,684.60 and 7,115,113.24

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Solution

The fourth proportional to 12,272,780.92, 16,932,684.60 and 7,115,113.24 is: 9,816,680.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272,780.92 : 16,932,684.60 = 7,115,113.24 : x
  2. Step 2: Convert to fraction form
    12,272,780.92/16,932,684.60 = 7,115,113.24/x
  3. Step 3: Cross multiply
    12,272,780.92x = 16,932,684.60 × 7,115,113.24
  4. Step 4: Simplify right side
    12,272,780.92x = 120,477,968,386,204.12
  5. Step 5: Solve for x
    x = 120,477,968,386,204.12/12,272,780.92
  6. Step 6: Final answer
    x = 9,816,680.44

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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.