Home / 10,561,990.40-15,853,483.20-5,176,721.60

Finding the Fourth Proportional to 10,561,990.40, 15,853,483.20 and 5,176,721.60

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Solution

The fourth proportional to 10,561,990.40, 15,853,483.20 and 5,176,721.60 is: 7,770,227.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,561,990.40 : 15,853,483.20 = 5,176,721.60 : x
  2. Step 2: Convert to fraction form
    10,561,990.40/15,853,483.20 = 5,176,721.60/x
  3. Step 3: Cross multiply
    10,561,990.40x = 15,853,483.20 × 5,176,721.60
  4. Step 4: Simplify right side
    10,561,990.40x = 82,069,068,916,677.11
  5. Step 5: Solve for x
    x = 82,069,068,916,677.11/10,561,990.40
  6. Step 6: Final answer
    x = 7,770,227.56

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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.