Home / 21,286,636.20-31,926,843.90-6,138,988.20

Finding the Fourth Proportional to 21,286,636.20, 31,926,843.90 and 6,138,988.20

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Solution

The fourth proportional to 21,286,636.20, 31,926,843.90 and 6,138,988.20 is: 9,207,585.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286,636.20 : 31,926,843.90 = 6,138,988.20 : x
  2. Step 2: Convert to fraction form
    21,286,636.20/31,926,843.90 = 6,138,988.20/x
  3. Step 3: Cross multiply
    21,286,636.20x = 31,926,843.90 × 6,138,988.20
  4. Step 4: Simplify right side
    21,286,636.20x = 195,998,517,965,341.97
  5. Step 5: Solve for x
    x = 195,998,517,965,341.97/21,286,636.20
  6. Step 6: Final answer
    x = 9,207,585.27

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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.