Home / 20,639,046.60-28,482,202.80-11,347,018.92

Finding the Fourth Proportional to 20,639,046.60, 28,482,202.80 and 11,347,018.92

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Solution

The fourth proportional to 20,639,046.60, 28,482,202.80 and 11,347,018.92 is: 15,659,061.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,639,046.60 : 28,482,202.80 = 11,347,018.92 : x
  2. Step 2: Convert to fraction form
    20,639,046.60/28,482,202.80 = 11,347,018.92/x
  3. Step 3: Cross multiply
    20,639,046.60x = 28,482,202.80 × 11,347,018.92
  4. Step 4: Simplify right side
    20,639,046.60x = 323,188,094,054,877
  5. Step 5: Solve for x
    x = 323,188,094,054,877/20,639,046.60
  6. Step 6: Final answer
    x = 15,659,061.21

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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.