Home / 260,657,510,042.73-390,775,272,171.11-81,491,272,837.14

Finding the Fourth Proportional to 260,657,510,042.73, 390,775,272,171.11 and 81,491,272,837.14

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Solution

The fourth proportional to 260,657,510,042.73, 390,775,272,171.11 and 81,491,272,837.14 is: 122,170,944,997.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,657,510,042.73 : 390,775,272,171.11 = 81,491,272,837.14 : x
  2. Step 2: Convert to fraction form
    260,657,510,042.73/390,775,272,171.11 = 81,491,272,837.14/x
  3. Step 3: Cross multiply
    260,657,510,042.73x = 390,775,272,171.11 × 81,491,272,837.14
  4. Step 4: Simplify right side
    260,657,510,042.73x = 31,844,774,322,503,566,753,792
  5. Step 5: Solve for x
    x = 31,844,774,322,503,566,753,792/260,657,510,042.73
  6. Step 6: Final answer
    x = 122,170,944,997.07

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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.