Home / 68,455,691.88-102,656,493.27-21,752,381.40

Finding the Fourth Proportional to 68,455,691.88, 102,656,493.27 and 21,752,381.40

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Solution

The fourth proportional to 68,455,691.88, 102,656,493.27 and 21,752,381.40 is: 32,619,978.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,455,691.88 : 102,656,493.27 = 21,752,381.40 : x
  2. Step 2: Convert to fraction form
    68,455,691.88/102,656,493.27 = 21,752,381.40/x
  3. Step 3: Cross multiply
    68,455,691.88x = 102,656,493.27 × 21,752,381.40
  4. Step 4: Simplify right side
    68,455,691.88x = 2,233,023,194,795,573
  5. Step 5: Solve for x
    x = 2,233,023,194,795,573/68,455,691.88
  6. Step 6: Final answer
    x = 32,619,978.46

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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.