Home / 6,815,640.80-10,244,456.40-6,437,727.20

Finding the Fourth Proportional to 6,815,640.80, 10,244,456.40 and 6,437,727.20

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Solution

The fourth proportional to 6,815,640.80, 10,244,456.40 and 6,437,727.20 is: 9,676,421.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815,640.80 : 10,244,456.40 = 6,437,727.20 : x
  2. Step 2: Convert to fraction form
    6,815,640.80/10,244,456.40 = 6,437,727.20/x
  3. Step 3: Cross multiply
    6,815,640.80x = 10,244,456.40 × 6,437,727.20
  4. Step 4: Simplify right side
    6,815,640.80x = 65,951,015,615,494.09
  5. Step 5: Solve for x
    x = 65,951,015,615,494.09/6,815,640.80
  6. Step 6: Final answer
    x = 9,676,421.86

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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.