Home / 120,231,136.92-165,919,290.55-65,226,993.42

Finding the Fourth Proportional to 120,231,136.92, 165,919,290.55 and 65,226,993.42

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Solution

The fourth proportional to 120,231,136.92, 165,919,290.55 and 65,226,993.42 is: 90,013,425.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,231,136.92 : 165,919,290.55 = 65,226,993.42 : x
  2. Step 2: Convert to fraction form
    120,231,136.92/165,919,290.55 = 65,226,993.42/x
  3. Step 3: Cross multiply
    120,231,136.92x = 165,919,290.55 × 65,226,993.42
  4. Step 4: Simplify right side
    120,231,136.92x = 10,822,416,473,782,276
  5. Step 5: Solve for x
    x = 10,822,416,473,782,276/120,231,136.92
  6. Step 6: Final answer
    x = 90,013,425.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.