Home / 81,675,309.60-122,512,964.40-74,117,037.60

Finding the Fourth Proportional to 81,675,309.60, 122,512,964.40 and 74,117,037.60

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Solution

The fourth proportional to 81,675,309.60, 122,512,964.40 and 74,117,037.60 is: 111,175,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,675,309.60 : 122,512,964.40 = 74,117,037.60 : x
  2. Step 2: Convert to fraction form
    81,675,309.60/122,512,964.40 = 74,117,037.60/x
  3. Step 3: Cross multiply
    81,675,309.60x = 122,512,964.40 × 74,117,037.60
  4. Step 4: Simplify right side
    81,675,309.60x = 9,080,297,988,922,262
  5. Step 5: Solve for x
    x = 9,080,297,988,922,262/81,675,309.60
  6. Step 6: Final answer
    x = 111,175,556.40

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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.