Home / 420,241,385.52-629,860,566.60-195,590,780.64

Finding the Fourth Proportional to 420,241,385.52, 629,860,566.60 and 195,590,780.64

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Solution

The fourth proportional to 420,241,385.52, 629,860,566.60 and 195,590,780.64 is: 293,152,754.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,241,385.52 : 629,860,566.60 = 195,590,780.64 : x
  2. Step 2: Convert to fraction form
    420,241,385.52/629,860,566.60 = 195,590,780.64/x
  3. Step 3: Cross multiply
    420,241,385.52x = 629,860,566.60 × 195,590,780.64
  4. Step 4: Simplify right side
    420,241,385.52x = 123,194,919,915,646,704
  5. Step 5: Solve for x
    x = 123,194,919,915,646,704/420,241,385.52
  6. Step 6: Final answer
    x = 293,152,754.97

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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.