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Finding the Fourth Proportional to 545,761,956.60, 818,678,364.30 and 287,481,630.60

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Solution

The fourth proportional to 545,761,956.60, 818,678,364.30 and 287,481,630.60 is: 431,241,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,761,956.60 : 818,678,364.30 = 287,481,630.60 : x
  2. Step 2: Convert to fraction form
    545,761,956.60/818,678,364.30 = 287,481,630.60/x
  3. Step 3: Cross multiply
    545,761,956.60x = 818,678,364.30 × 287,481,630.60
  4. Step 4: Simplify right side
    545,761,956.60x = 235,354,991,105,904,832
  5. Step 5: Solve for x
    x = 235,354,991,105,904,832/545,761,956.60
  6. Step 6: Final answer
    x = 431,241,108.44

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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.