Home / 120,267,841.05-165,969,620.66-65,263,697.55

Finding the Fourth Proportional to 120,267,841.05, 165,969,620.66 and 65,263,697.55

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Solution

The fourth proportional to 120,267,841.05, 165,969,620.66 and 65,263,697.55 is: 90,063,902.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,267,841.05 : 165,969,620.66 = 65,263,697.55 : x
  2. Step 2: Convert to fraction form
    120,267,841.05/165,969,620.66 = 65,263,697.55/x
  3. Step 3: Cross multiply
    120,267,841.05x = 165,969,620.66 × 65,263,697.55
  4. Step 4: Simplify right side
    120,267,841.05x = 10,831,791,125,242,470
  5. Step 5: Solve for x
    x = 10,831,791,125,242,470/120,267,841.05
  6. Step 6: Final answer
    x = 90,063,902.62

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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.