Home / 11,392,987.20-15,721,930.80-6,499,793.28

Finding the Fourth Proportional to 11,392,987.20, 15,721,930.80 and 6,499,793.28

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Solution

The fourth proportional to 11,392,987.20, 15,721,930.80 and 6,499,793.28 is: 8,969,491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392,987.20 : 15,721,930.80 = 6,499,793.28 : x
  2. Step 2: Convert to fraction form
    11,392,987.20/15,721,930.80 = 6,499,793.28/x
  3. Step 3: Cross multiply
    11,392,987.20x = 15,721,930.80 × 6,499,793.28
  4. Step 4: Simplify right side
    11,392,987.20x = 102,189,300,162,465.03
  5. Step 5: Solve for x
    x = 102,189,300,162,465.03/11,392,987.20
  6. Step 6: Final answer
    x = 8,969,491.35

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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.