Home / 707,774,540.38-977,147,843.97-629,241,178.75

Finding the Fourth Proportional to 707,774,540.38, 977,147,843.97 and 629,241,178.75

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Solution

The fourth proportional to 707,774,540.38, 977,147,843.97 and 629,241,178.75 is: 868,725,315.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,774,540.38 : 977,147,843.97 = 629,241,178.75 : x
  2. Step 2: Convert to fraction form
    707,774,540.38/977,147,843.97 = 629,241,178.75/x
  3. Step 3: Cross multiply
    707,774,540.38x = 977,147,843.97 × 629,241,178.75
  4. Step 4: Simplify right side
    707,774,540.38x = 614,861,661,152,703,872
  5. Step 5: Solve for x
    x = 614,861,661,152,703,872/707,774,540.38
  6. Step 6: Final answer
    x = 868,725,315.86

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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.