Home / 1,257,520,505.84-1,735,337,601.24-721,760,355.80

Finding the Fourth Proportional to 1,257,520,505.84, 1,735,337,601.24 and 721,760,355.80

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Solution

The fourth proportional to 1,257,520,505.84, 1,735,337,601.24 and 721,760,355.80 is: 996,005,932.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,520,505.84 : 1,735,337,601.24 = 721,760,355.80 : x
  2. Step 2: Convert to fraction form
    1,257,520,505.84/1,735,337,601.24 = 721,760,355.80/x
  3. Step 3: Cross multiply
    1,257,520,505.84x = 1,735,337,601.24 × 721,760,355.80
  4. Step 4: Simplify right side
    1,257,520,505.84x = 1,252,497,884,504,100,864
  5. Step 5: Solve for x
    x = 1,252,497,884,504,100,864/1,257,520,505.84
  6. Step 6: Final answer
    x = 996,005,932.86

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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.