Home / 908,107,107.70-1,253,187,760.65-490,419,352.75

Finding the Fourth Proportional to 908,107,107.70, 1,253,187,760.65 and 490,419,352.75

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Solution

The fourth proportional to 908,107,107.70, 1,253,187,760.65 and 490,419,352.75 is: 676,778,680.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,107,107.70 : 1,253,187,760.65 = 490,419,352.75 : x
  2. Step 2: Convert to fraction form
    908,107,107.70/1,253,187,760.65 = 490,419,352.75/x
  3. Step 3: Cross multiply
    908,107,107.70x = 1,253,187,760.65 × 490,419,352.75
  4. Step 4: Simplify right side
    908,107,107.70x = 614,587,530,452,194,944
  5. Step 5: Solve for x
    x = 614,587,530,452,194,944/908,107,107.70
  6. Step 6: Final answer
    x = 676,778,680.89

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1.5x scale

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.