Home / 12,927,949.87-17,840,691.16-7,126,939.21

Finding the Fourth Proportional to 12,927,949.87, 17,840,691.16 and 7,126,939.21

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Solution

The fourth proportional to 12,927,949.87, 17,840,691.16 and 7,126,939.21 is: 9,835,242.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927,949.87 : 17,840,691.16 = 7,126,939.21 : x
  2. Step 2: Convert to fraction form
    12,927,949.87/17,840,691.16 = 7,126,939.21/x
  3. Step 3: Cross multiply
    12,927,949.87x = 17,840,691.16 × 7,126,939.21
  4. Step 4: Simplify right side
    12,927,949.87x = 127,149,521,272,500.94
  5. Step 5: Solve for x
    x = 127,149,521,272,500.94/12,927,949.87
  6. Step 6: Final answer
    x = 9,835,242.44

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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.