Home / 121,479,419.20-182,219,128.80-112,126,057.60

Finding the Fourth Proportional to 121,479,419.20, 182,219,128.80 and 112,126,057.60

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Solution

The fourth proportional to 121,479,419.20, 182,219,128.80 and 112,126,057.60 is: 168,189,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,479,419.20 : 182,219,128.80 = 112,126,057.60 : x
  2. Step 2: Convert to fraction form
    121,479,419.20/182,219,128.80 = 112,126,057.60/x
  3. Step 3: Cross multiply
    121,479,419.20x = 182,219,128.80 × 112,126,057.60
  4. Step 4: Simplify right side
    121,479,419.20x = 20,431,512,531,650,620
  5. Step 5: Solve for x
    x = 20,431,512,531,650,620/121,479,419.20
  6. Step 6: Final answer
    x = 168,189,086.40

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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.