Home / 80,853,340.20-121,280,010.30-23,347,487.40

Finding the Fourth Proportional to 80,853,340.20, 121,280,010.30 and 23,347,487.40

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Solution

The fourth proportional to 80,853,340.20, 121,280,010.30 and 23,347,487.40 is: 35,021,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,853,340.20 : 121,280,010.30 = 23,347,487.40 : x
  2. Step 2: Convert to fraction form
    80,853,340.20/121,280,010.30 = 23,347,487.40/x
  3. Step 3: Cross multiply
    80,853,340.20x = 121,280,010.30 × 23,347,487.40
  4. Step 4: Simplify right side
    80,853,340.20x = 2,831,583,512,351,120
  5. Step 5: Solve for x
    x = 2,831,583,512,351,120/80,853,340.20
  6. Step 6: Final answer
    x = 35,021,231.10

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Double scale
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Similar ratio
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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.