Home / 12,770,456.60-19,165,016.10-8,991,320.60

Finding the Fourth Proportional to 12,770,456.60, 19,165,016.10 and 8,991,320.60

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Solution

The fourth proportional to 12,770,456.60, 19,165,016.10 and 8,991,320.60 is: 13,493,550.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,770,456.60 : 19,165,016.10 = 8,991,320.60 : x
  2. Step 2: Convert to fraction form
    12,770,456.60/19,165,016.10 = 8,991,320.60/x
  3. Step 3: Cross multiply
    12,770,456.60x = 19,165,016.10 × 8,991,320.60
  4. Step 4: Simplify right side
    12,770,456.60x = 172,318,804,059,261.66
  5. Step 5: Solve for x
    x = 172,318,804,059,261.66/12,770,456.60
  6. Step 6: Final answer
    x = 13,493,550.74

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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.