Home / 15,189,841.71-20,957,836.32-8,661,090.24

Finding the Fourth Proportional to 15,189,841.71, 20,957,836.32 and 8,661,090.24

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Solution

The fourth proportional to 15,189,841.71, 20,957,836.32 and 8,661,090.24 is: 11,949,940.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,189,841.71 : 20,957,836.32 = 8,661,090.24 : x
  2. Step 2: Convert to fraction form
    15,189,841.71/20,957,836.32 = 8,661,090.24/x
  3. Step 3: Cross multiply
    15,189,841.71x = 20,957,836.32 × 8,661,090.24
  4. Step 4: Simplify right side
    15,189,841.71x = 181,517,711,602,669.53
  5. Step 5: Solve for x
    x = 181,517,711,602,669.53/15,189,841.71
  6. Step 6: Final answer
    x = 11,949,940.96

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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.