Home / 13,457,655.20-20,162,425.80-8,189,901.20

Finding the Fourth Proportional to 13,457,655.20, 20,162,425.80 and 8,189,901.20

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Solution

The fourth proportional to 13,457,655.20, 20,162,425.80 and 8,189,901.20 is: 12,270,211.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457,655.20 : 20,162,425.80 = 8,189,901.20 : x
  2. Step 2: Convert to fraction form
    13,457,655.20/20,162,425.80 = 8,189,901.20/x
  3. Step 3: Cross multiply
    13,457,655.20x = 20,162,425.80 × 8,189,901.20
  4. Step 4: Simplify right side
    13,457,655.20x = 165,128,275,254,330.97
  5. Step 5: Solve for x
    x = 165,128,275,254,330.97/13,457,655.20
  6. Step 6: Final answer
    x = 12,270,211.47

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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.