Home / 7,169,540.86-9,893,841.80-3,906,382.40

Finding the Fourth Proportional to 7,169,540.86, 9,893,841.80 and 3,906,382.40

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Solution

The fourth proportional to 7,169,540.86, 9,893,841.80 and 3,906,382.40 is: 5,390,739.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,169,540.86 : 9,893,841.80 = 3,906,382.40 : x
  2. Step 2: Convert to fraction form
    7,169,540.86/9,893,841.80 = 3,906,382.40/x
  3. Step 3: Cross multiply
    7,169,540.86x = 9,893,841.80 × 3,906,382.40
  4. Step 4: Simplify right side
    7,169,540.86x = 38,649,129,475,904.32
  5. Step 5: Solve for x
    x = 38,649,129,475,904.32/7,169,540.86
  6. Step 6: Final answer
    x = 5,390,739.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.