Home / 260,657,512,627.38-390,775,276,041.66-81,491,275,421.79

Finding the Fourth Proportional to 260,657,512,627.38, 390,775,276,041.66 and 81,491,275,421.79

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Solution

The fourth proportional to 260,657,512,627.38, 390,775,276,041.66 and 81,491,275,421.79 is: 122,170,948,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,657,512,627.38 : 390,775,276,041.66 = 81,491,275,421.79 : x
  2. Step 2: Convert to fraction form
    260,657,512,627.38/390,775,276,041.66 = 81,491,275,421.79/x
  3. Step 3: Cross multiply
    260,657,512,627.38x = 390,775,276,041.66 × 81,491,275,421.79
  4. Step 4: Simplify right side
    260,657,512,627.38x = 31,844,775,647,936,925,138,944
  5. Step 5: Solve for x
    x = 31,844,775,647,936,925,138,944/260,657,512,627.38
  6. Step 6: Final answer
    x = 122,170,948,870.60

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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.