Home / 1,304,768,259.72-1,957,336,240.65-419,156,659.78

Finding the Fourth Proportional to 1,304,768,259.72, 1,957,336,240.65 and 419,156,659.78

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Solution

The fourth proportional to 1,304,768,259.72, 1,957,336,240.65 and 419,156,659.78 is: 628,794,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304,768,259.72 : 1,957,336,240.65 = 419,156,659.78 : x
  2. Step 2: Convert to fraction form
    1,304,768,259.72/1,957,336,240.65 = 419,156,659.78/x
  3. Step 3: Cross multiply
    1,304,768,259.72x = 1,957,336,240.65 × 419,156,659.78
  4. Step 4: Simplify right side
    1,304,768,259.72x = 820,430,520,690,752,000
  5. Step 5: Solve for x
    x = 820,430,520,690,752,000/1,304,768,259.72
  6. Step 6: Final answer
    x = 628,794,051.80

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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.