Home / 14,990,719.39-20,687,199.67-8,115,201.45

Finding the Fourth Proportional to 14,990,719.39, 20,687,199.67 and 8,115,201.45

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Solution

The fourth proportional to 14,990,719.39, 20,687,199.67 and 8,115,201.45 is: 11,198,981.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990,719.39 : 20,687,199.67 = 8,115,201.45 : x
  2. Step 2: Convert to fraction form
    14,990,719.39/20,687,199.67 = 8,115,201.45/x
  3. Step 3: Cross multiply
    14,990,719.39x = 20,687,199.67 × 8,115,201.45
  4. Step 4: Simplify right side
    14,990,719.39x = 167,880,792,654,987.53
  5. Step 5: Solve for x
    x = 167,880,792,654,987.53/14,990,719.39
  6. Step 6: Final answer
    x = 11,198,981.74

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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.