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Finding the Fourth Proportional to 65,227,152.20, 97,840,728.30 and 43,728,067.40

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Solution

The fourth proportional to 65,227,152.20, 97,840,728.30 and 43,728,067.40 is: 65,592,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,227,152.20 : 97,840,728.30 = 43,728,067.40 : x
  2. Step 2: Convert to fraction form
    65,227,152.20/97,840,728.30 = 43,728,067.40/x
  3. Step 3: Cross multiply
    65,227,152.20x = 97,840,728.30 × 43,728,067.40
  4. Step 4: Simplify right side
    65,227,152.20x = 4,278,385,961,567,487
  5. Step 5: Solve for x
    x = 4,278,385,961,567,487/65,227,152.20
  6. Step 6: Final answer
    x = 65,592,101.10

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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.