Home / 65,138,520.20-97,710,922.60-21,418,310.72

Finding the Fourth Proportional to 65,138,520.20, 97,710,922.60 and 21,418,310.72

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Solution

The fourth proportional to 65,138,520.20, 97,710,922.60 and 21,418,310.72 is: 32,128,499.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,138,520.20 : 97,710,922.60 = 21,418,310.72 : x
  2. Step 2: Convert to fraction form
    65,138,520.20/97,710,922.60 = 21,418,310.72/x
  3. Step 3: Cross multiply
    65,138,520.20x = 97,710,922.60 × 21,418,310.72
  4. Step 4: Simplify right side
    65,138,520.20x = 2,092,802,901,175,401.75
  5. Step 5: Solve for x
    x = 2,092,802,901,175,401.75/65,138,520.20
  6. Step 6: Final answer
    x = 32,128,499.31

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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.