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Finding the Fourth Proportional to 542,651,362.62, 813,982,081.26 and 154,474,178.88

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Solution

The fourth proportional to 542,651,362.62, 813,982,081.26 and 154,474,178.88 is: 231,712,702.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,651,362.62 : 813,982,081.26 = 154,474,178.88 : x
  2. Step 2: Convert to fraction form
    542,651,362.62/813,982,081.26 = 154,474,178.88/x
  3. Step 3: Cross multiply
    542,651,362.62x = 813,982,081.26 × 154,474,178.88
  4. Step 4: Simplify right side
    542,651,362.62x = 125,739,213,625,671,936
  5. Step 5: Solve for x
    x = 125,739,213,625,671,936/542,651,362.62
  6. Step 6: Final answer
    x = 231,712,702.27

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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.