Home / 123,493,197.78-170,451,582.12-83,867,775.84

Finding the Fourth Proportional to 123,493,197.78, 170,451,582.12 and 83,867,775.84

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Solution

The fourth proportional to 123,493,197.78, 170,451,582.12 and 83,867,775.84 is: 115,758,562.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,493,197.78 : 170,451,582.12 = 83,867,775.84 : x
  2. Step 2: Convert to fraction form
    123,493,197.78/170,451,582.12 = 83,867,775.84/x
  3. Step 3: Cross multiply
    123,493,197.78x = 170,451,582.12 × 83,867,775.84
  4. Step 4: Simplify right side
    123,493,197.78x = 14,295,395,080,813,512
  5. Step 5: Solve for x
    x = 14,295,395,080,813,512/123,493,197.78
  6. Step 6: Final answer
    x = 115,758,562.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.