Home / 427,274,376,585.60-640,775,491,513.92-140,365,836,036.48

Finding the Fourth Proportional to 427,274,376,585.60, 640,775,491,513.92 and 140,365,836,036.48

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Solution

The fourth proportional to 427,274,376,585.60, 640,775,491,513.92 and 140,365,836,036.48 is: 210,504,051,978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,274,376,585.60 : 640,775,491,513.92 = 140,365,836,036.48 : x
  2. Step 2: Convert to fraction form
    427,274,376,585.60/640,775,491,513.92 = 140,365,836,036.48/x
  3. Step 3: Cross multiply
    427,274,376,585.60x = 640,775,491,513.92 × 140,365,836,036.48
  4. Step 4: Simplify right side
    427,274,376,585.60x = 89,942,987,578,037,789,261,824
  5. Step 5: Solve for x
    x = 89,942,987,578,037,789,261,824/427,274,376,585.60
  6. Step 6: Final answer
    x = 210,504,051,978.93

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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.