Home / 123,992,239.88-171,132,980.28-82,102,419.92

Finding the Fourth Proportional to 123,992,239.88, 171,132,980.28 and 82,102,419.92

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Solution

The fourth proportional to 123,992,239.88, 171,132,980.28 and 82,102,419.92 is: 113,317,025.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,992,239.88 : 171,132,980.28 = 82,102,419.92 : x
  2. Step 2: Convert to fraction form
    123,992,239.88/171,132,980.28 = 82,102,419.92/x
  3. Step 3: Cross multiply
    123,992,239.88x = 171,132,980.28 × 82,102,419.92
  4. Step 4: Simplify right side
    123,992,239.88x = 14,050,431,809,109,640
  5. Step 5: Solve for x
    x = 14,050,431,809,109,640/123,992,239.88
  6. Step 6: Final answer
    x = 113,317,025.51

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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.