Home / 10,538,485.20-15,764,425.20-8,412,721.20

Finding the Fourth Proportional to 10,538,485.20, 15,764,425.20 and 8,412,721.20

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Solution

The fourth proportional to 10,538,485.20, 15,764,425.20 and 8,412,721.20 is: 12,584,513.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538,485.20 : 15,764,425.20 = 8,412,721.20 : x
  2. Step 2: Convert to fraction form
    10,538,485.20/15,764,425.20 = 8,412,721.20/x
  3. Step 3: Cross multiply
    10,538,485.20x = 15,764,425.20 × 8,412,721.20
  4. Step 4: Simplify right side
    10,538,485.20x = 132,621,714,085,854.22
  5. Step 5: Solve for x
    x = 132,621,714,085,854.22/10,538,485.20
  6. Step 6: Final answer
    x = 12,584,513.96

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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.