Home / 13,432,871.20-20,149,306.80-7,386,253.60

Finding the Fourth Proportional to 13,432,871.20, 20,149,306.80 and 7,386,253.60

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Solution

The fourth proportional to 13,432,871.20, 20,149,306.80 and 7,386,253.60 is: 11,079,380.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432,871.20 : 20,149,306.80 = 7,386,253.60 : x
  2. Step 2: Convert to fraction form
    13,432,871.20/20,149,306.80 = 7,386,253.60/x
  3. Step 3: Cross multiply
    13,432,871.20x = 20,149,306.80 × 7,386,253.60
  4. Step 4: Simplify right side
    13,432,871.20x = 148,827,889,889,004.47
  5. Step 5: Solve for x
    x = 148,827,889,889,004.47/13,432,871.20
  6. Step 6: Final answer
    x = 11,079,380.40

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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.