Home / 12,120,135.30-18,189,060.30-8,532,908.55

Finding the Fourth Proportional to 12,120,135.30, 18,189,060.30 and 8,532,908.55

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Solution

The fourth proportional to 12,120,135.30, 18,189,060.30 and 8,532,908.55 is: 12,805,598.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120,135.30 : 18,189,060.30 = 8,532,908.55 : x
  2. Step 2: Convert to fraction form
    12,120,135.30/18,189,060.30 = 8,532,908.55/x
  3. Step 3: Cross multiply
    12,120,135.30x = 18,189,060.30 × 8,532,908.55
  4. Step 4: Simplify right side
    12,120,135.30x = 155,205,588,150,335.59
  5. Step 5: Solve for x
    x = 155,205,588,150,335.59/12,120,135.30
  6. Step 6: Final answer
    x = 12,805,598.64

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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.