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Finding the Fourth Proportional to 80,892,117.60, 121,338,176.40 and 35,542,485.60

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Solution

The fourth proportional to 80,892,117.60, 121,338,176.40 and 35,542,485.60 is: 53,313,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,892,117.60 : 121,338,176.40 = 35,542,485.60 : x
  2. Step 2: Convert to fraction form
    80,892,117.60/121,338,176.40 = 35,542,485.60/x
  3. Step 3: Cross multiply
    80,892,117.60x = 121,338,176.40 × 35,542,485.60
  4. Step 4: Simplify right side
    80,892,117.60x = 4,312,660,387,427,260
  5. Step 5: Solve for x
    x = 4,312,660,387,427,260/80,892,117.60
  6. Step 6: Final answer
    x = 53,313,728.40

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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.