Home / 81,844,010,002.90-122,766,015,004.35-39,947,752,479.70

Finding the Fourth Proportional to 81,844,010,002.90, 122,766,015,004.35 and 39,947,752,479.70

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Solution

The fourth proportional to 81,844,010,002.90, 122,766,015,004.35 and 39,947,752,479.70 is: 59,921,628,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,844,010,002.90 : 122,766,015,004.35 = 39,947,752,479.70 : x
  2. Step 2: Convert to fraction form
    81,844,010,002.90/122,766,015,004.35 = 39,947,752,479.70/x
  3. Step 3: Cross multiply
    81,844,010,002.90x = 122,766,015,004.35 × 39,947,752,479.70
  4. Step 4: Simplify right side
    81,844,010,002.90x = 4,904,226,380,312,909,709,312
  5. Step 5: Solve for x
    x = 4,904,226,380,312,909,709,312/81,844,010,002.90
  6. Step 6: Final answer
    x = 59,921,628,719.55

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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.