Home / 18,691,876.80-28,037,815.20-8,054,308.80

Finding the Fourth Proportional to 18,691,876.80, 28,037,815.20 and 8,054,308.80

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Solution

The fourth proportional to 18,691,876.80, 28,037,815.20 and 8,054,308.80 is: 12,081,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,691,876.80 : 28,037,815.20 = 8,054,308.80 : x
  2. Step 2: Convert to fraction form
    18,691,876.80/28,037,815.20 = 8,054,308.80/x
  3. Step 3: Cross multiply
    18,691,876.80x = 28,037,815.20 × 8,054,308.80
  4. Step 4: Simplify right side
    18,691,876.80x = 225,825,221,698,133.75
  5. Step 5: Solve for x
    x = 225,825,221,698,133.75/18,691,876.80
  6. Step 6: Final answer
    x = 12,081,463.20

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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.