Home / 12,135,835.40-18,203,753.10-10,918,113.80

Finding the Fourth Proportional to 12,135,835.40, 18,203,753.10 and 10,918,113.80

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Solution

The fourth proportional to 12,135,835.40, 18,203,753.10 and 10,918,113.80 is: 16,377,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135,835.40 : 18,203,753.10 = 10,918,113.80 : x
  2. Step 2: Convert to fraction form
    12,135,835.40/18,203,753.10 = 10,918,113.80/x
  3. Step 3: Cross multiply
    12,135,835.40x = 18,203,753.10 × 10,918,113.80
  4. Step 4: Simplify right side
    12,135,835.40x = 198,750,647,932,902.81
  5. Step 5: Solve for x
    x = 198,750,647,932,902.81/12,135,835.40
  6. Step 6: Final answer
    x = 16,377,170.70

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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.