Home / 79,121,146.20-118,681,719.30-48,510,144.60

Finding the Fourth Proportional to 79,121,146.20, 118,681,719.30 and 48,510,144.60

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Solution

The fourth proportional to 79,121,146.20, 118,681,719.30 and 48,510,144.60 is: 72,765,216.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,121,146.20 : 118,681,719.30 = 48,510,144.60 : x
  2. Step 2: Convert to fraction form
    79,121,146.20/118,681,719.30 = 48,510,144.60/x
  3. Step 3: Cross multiply
    79,121,146.20x = 118,681,719.30 × 48,510,144.60
  4. Step 4: Simplify right side
    79,121,146.20x = 5,757,267,364,619,611
  5. Step 5: Solve for x
    x = 5,757,267,364,619,611/79,121,146.20
  6. Step 6: Final answer
    x = 72,765,216.90

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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.