Home / 84,059,716.20-126,189,107.10-83,462,519.40

Finding the Fourth Proportional to 84,059,716.20, 126,189,107.10 and 83,462,519.40

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Solution

The fourth proportional to 84,059,716.20, 126,189,107.10 and 83,462,519.40 is: 125,292,604.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,059,716.20 : 126,189,107.10 = 83,462,519.40 : x
  2. Step 2: Convert to fraction form
    84,059,716.20/126,189,107.10 = 83,462,519.40/x
  3. Step 3: Cross multiply
    84,059,716.20x = 126,189,107.10 × 83,462,519.40
  4. Step 4: Simplify right side
    84,059,716.20x = 10,532,060,799,402,428
  5. Step 5: Solve for x
    x = 10,532,060,799,402,428/84,059,716.20
  6. Step 6: Final answer
    x = 125,292,604.78

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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.