Home / 14,990,966.65-20,687,540.90-8,115,448.71

Finding the Fourth Proportional to 14,990,966.65, 20,687,540.90 and 8,115,448.71

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Solution

The fourth proportional to 14,990,966.65, 20,687,540.90 and 8,115,448.71 is: 11,199,322.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990,966.65 : 20,687,540.90 = 8,115,448.71 : x
  2. Step 2: Convert to fraction form
    14,990,966.65/20,687,540.90 = 8,115,448.71/x
  3. Step 3: Cross multiply
    14,990,966.65x = 20,687,540.90 × 8,115,448.71
  4. Step 4: Simplify right side
    14,990,966.65x = 167,888,677,069,400
  5. Step 5: Solve for x
    x = 167,888,677,069,400/14,990,966.65
  6. Step 6: Final answer
    x = 11,199,322.97

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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.