Home / 13,278,764.60-19,936,809.30-10,442,079.80

Finding the Fourth Proportional to 13,278,764.60, 19,936,809.30 and 10,442,079.80

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Solution

The fourth proportional to 13,278,764.60, 19,936,809.30 and 10,442,079.80 is: 15,677,795.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278,764.60 : 19,936,809.30 = 10,442,079.80 : x
  2. Step 2: Convert to fraction form
    13,278,764.60/19,936,809.30 = 10,442,079.80/x
  3. Step 3: Cross multiply
    13,278,764.60x = 19,936,809.30 × 10,442,079.80
  4. Step 4: Simplify right side
    13,278,764.60x = 208,181,753,667,982.16
  5. Step 5: Solve for x
    x = 208,181,753,667,982.16/13,278,764.60
  6. Step 6: Final answer
    x = 15,677,795.33

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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.