Home / 782,859,546.80-1,175,196,001.80-420,062,490.80

Finding the Fourth Proportional to 782,859,546.80, 1,175,196,001.80 and 420,062,490.80

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Solution

The fourth proportional to 782,859,546.80, 1,175,196,001.80 and 420,062,490.80 is: 630,580,238.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,859,546.80 : 1,175,196,001.80 = 420,062,490.80 : x
  2. Step 2: Convert to fraction form
    782,859,546.80/1,175,196,001.80 = 420,062,490.80/x
  3. Step 3: Cross multiply
    782,859,546.80x = 1,175,196,001.80 × 420,062,490.80
  4. Step 4: Simplify right side
    782,859,546.80x = 493,655,759,694,309,248
  5. Step 5: Solve for x
    x = 493,655,759,694,309,248/782,859,546.80
  6. Step 6: Final answer
    x = 630,580,238.45

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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.