Home / 12,127,524.40-18,191,578.20-3,608,138.80

Finding the Fourth Proportional to 12,127,524.40, 18,191,578.20 and 3,608,138.80

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Solution

The fourth proportional to 12,127,524.40, 18,191,578.20 and 3,608,138.80 is: 5,412,294.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,524.40 : 18,191,578.20 = 3,608,138.80 : x
  2. Step 2: Convert to fraction form
    12,127,524.40/18,191,578.20 = 3,608,138.80/x
  3. Step 3: Cross multiply
    12,127,524.40x = 18,191,578.20 × 3,608,138.80
  4. Step 4: Simplify right side
    12,127,524.40x = 65,637,739,136,654.16
  5. Step 5: Solve for x
    x = 65,637,739,136,654.16/12,127,524.40
  6. Step 6: Final answer
    x = 5,412,294.96

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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.