Home / 7,250,711.25-10,005,781.70-3,987,525.90

Finding the Fourth Proportional to 7,250,711.25, 10,005,781.70 and 3,987,525.90

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Solution

The fourth proportional to 7,250,711.25, 10,005,781.70 and 3,987,525.90 is: 5,502,675.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,250,711.25 : 10,005,781.70 = 3,987,525.90 : x
  2. Step 2: Convert to fraction form
    7,250,711.25/10,005,781.70 = 3,987,525.90/x
  3. Step 3: Cross multiply
    7,250,711.25x = 10,005,781.70 × 3,987,525.90
  4. Step 4: Simplify right side
    7,250,711.25x = 39,898,313,658,558.40
  5. Step 5: Solve for x
    x = 39,898,313,658,558.40/7,250,711.25
  6. Step 6: Final answer
    x = 5,502,675.85

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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.