Home / 121,479,583.20-182,219,374.80-112,126,221.60

Finding the Fourth Proportional to 121,479,583.20, 182,219,374.80 and 112,126,221.60

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Solution

The fourth proportional to 121,479,583.20, 182,219,374.80 and 112,126,221.60 is: 168,189,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,479,583.20 : 182,219,374.80 = 112,126,221.60 : x
  2. Step 2: Convert to fraction form
    121,479,583.20/182,219,374.80 = 112,126,221.60/x
  3. Step 3: Cross multiply
    121,479,583.20x = 182,219,374.80 × 112,126,221.60
  4. Step 4: Simplify right side
    121,479,583.20x = 20,431,569,998,638,256
  5. Step 5: Solve for x
    x = 20,431,569,998,638,256/121,479,583.20
  6. Step 6: Final answer
    x = 168,189,332.40

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1.5x scale

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.