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Finding the Fourth Proportional to 43,454,584.60, 65,181,876.90 and 21,880,850.20

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Solution

The fourth proportional to 43,454,584.60, 65,181,876.90 and 21,880,850.20 is: 32,821,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,454,584.60 : 65,181,876.90 = 21,880,850.20 : x
  2. Step 2: Convert to fraction form
    43,454,584.60/65,181,876.90 = 21,880,850.20/x
  3. Step 3: Cross multiply
    43,454,584.60x = 65,181,876.90 × 21,880,850.20
  4. Step 4: Simplify right side
    43,454,584.60x = 1,426,234,884,203,740.25
  5. Step 5: Solve for x
    x = 1,426,234,884,203,740.25/43,454,584.60
  6. Step 6: Final answer
    x = 32,821,275.30

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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.