Home / 14,990,966.40-20,687,540.56-8,115,448.46

Finding the Fourth Proportional to 14,990,966.40, 20,687,540.56 and 8,115,448.46

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Solution

The fourth proportional to 14,990,966.40, 20,687,540.56 and 8,115,448.46 is: 11,199,322.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990,966.40 : 20,687,540.56 = 8,115,448.46 : x
  2. Step 2: Convert to fraction form
    14,990,966.40/20,687,540.56 = 8,115,448.46/x
  3. Step 3: Cross multiply
    14,990,966.40x = 20,687,540.56 × 8,115,448.46
  4. Step 4: Simplify right side
    14,990,966.40x = 167,888,669,178,839.53
  5. Step 5: Solve for x
    x = 167,888,669,178,839.53/14,990,966.40
  6. Step 6: Final answer
    x = 11,199,322.63

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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.