Home / 18,850,721.10-28,318,646.86-11,179,397.60

Finding the Fourth Proportional to 18,850,721.10, 28,318,646.86 and 11,179,397.60

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Solution

The fourth proportional to 18,850,721.10, 28,318,646.86 and 11,179,397.60 is: 16,794,339.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,850,721.10 : 28,318,646.86 = 11,179,397.60 : x
  2. Step 2: Convert to fraction form
    18,850,721.10/28,318,646.86 = 11,179,397.60/x
  3. Step 3: Cross multiply
    18,850,721.10x = 28,318,646.86 × 11,179,397.60
  4. Step 4: Simplify right side
    18,850,721.10x = 316,585,412,678,584.75
  5. Step 5: Solve for x
    x = 316,585,412,678,584.75/18,850,721.10
  6. Step 6: Final answer
    x = 16,794,339.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.