Home / 39,407,488.68-54,382,009.74-21,525,723.90

Finding the Fourth Proportional to 39,407,488.68, 54,382,009.74 and 21,525,723.90

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Solution

The fourth proportional to 39,407,488.68, 54,382,009.74 and 21,525,723.90 is: 29,705,321.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,407,488.68 : 54,382,009.74 = 21,525,723.90 : x
  2. Step 2: Convert to fraction form
    39,407,488.68/54,382,009.74 = 21,525,723.90/x
  3. Step 3: Cross multiply
    39,407,488.68x = 54,382,009.74 × 21,525,723.90
  4. Step 4: Simplify right side
    39,407,488.68x = 1,170,612,126,790,350.75
  5. Step 5: Solve for x
    x = 1,170,612,126,790,350.75/39,407,488.68
  6. Step 6: Final answer
    x = 29,705,321.65

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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.