Home / 20,816,553.18-28,729,849.30-11,994,314.56

Finding the Fourth Proportional to 20,816,553.18, 28,729,849.30 and 11,994,314.56

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Solution

The fourth proportional to 20,816,553.18, 28,729,849.30 and 11,994,314.56 is: 16,553,886.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,816,553.18 : 28,729,849.30 = 11,994,314.56 : x
  2. Step 2: Convert to fraction form
    20,816,553.18/28,729,849.30 = 11,994,314.56/x
  3. Step 3: Cross multiply
    20,816,553.18x = 28,729,849.30 × 11,994,314.56
  4. Step 4: Simplify right side
    20,816,553.18x = 344,594,849,663,785.38
  5. Step 5: Solve for x
    x = 344,594,849,663,785.38/20,816,553.18
  6. Step 6: Final answer
    x = 16,553,886.06

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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.