Home / 12,101,998.20-18,152,997.30-4,527,979.80

Finding the Fourth Proportional to 12,101,998.20, 18,152,997.30 and 4,527,979.80

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Solution

The fourth proportional to 12,101,998.20, 18,152,997.30 and 4,527,979.80 is: 6,791,969.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101,998.20 : 18,152,997.30 = 4,527,979.80 : x
  2. Step 2: Convert to fraction form
    12,101,998.20/18,152,997.30 = 4,527,979.80/x
  3. Step 3: Cross multiply
    12,101,998.20x = 18,152,997.30 × 4,527,979.80
  4. Step 4: Simplify right side
    12,101,998.20x = 82,196,405,083,854.55
  5. Step 5: Solve for x
    x = 82,196,405,083,854.55/12,101,998.20
  6. Step 6: Final answer
    x = 6,791,969.70

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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.