Home / 81,844,010,002.40-122,766,015,003.60-39,947,752,479.20

Finding the Fourth Proportional to 81,844,010,002.40, 122,766,015,003.60 and 39,947,752,479.20

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Solution

The fourth proportional to 81,844,010,002.40, 122,766,015,003.60 and 39,947,752,479.20 is: 59,921,628,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,844,010,002.40 : 122,766,015,003.60 = 39,947,752,479.20 : x
  2. Step 2: Convert to fraction form
    81,844,010,002.40/122,766,015,003.60 = 39,947,752,479.20/x
  3. Step 3: Cross multiply
    81,844,010,002.40x = 122,766,015,003.60 × 39,947,752,479.20
  4. Step 4: Simplify right side
    81,844,010,002.40x = 4,904,226,380,221,566,156,800
  5. Step 5: Solve for x
    x = 4,904,226,380,221,566,156,800/81,844,010,002.40
  6. Step 6: Final answer
    x = 59,921,628,718.80

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Double scale
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Similar ratio
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1.5x scale

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.