Home / 25,580,986.76-35,301,853.38-13,978,550.12

Finding the Fourth Proportional to 25,580,986.76, 35,301,853.38 and 13,978,550.12

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Solution

The fourth proportional to 25,580,986.76, 35,301,853.38 and 13,978,550.12 is: 19,290,449.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,580,986.76 : 35,301,853.38 = 13,978,550.12 : x
  2. Step 2: Convert to fraction form
    25,580,986.76/35,301,853.38 = 13,978,550.12/x
  3. Step 3: Cross multiply
    25,580,986.76x = 35,301,853.38 × 13,978,550.12
  4. Step 4: Simplify right side
    25,580,986.76x = 493,468,726,801,221.44
  5. Step 5: Solve for x
    x = 493,468,726,801,221.44/25,580,986.76
  6. Step 6: Final answer
    x = 19,290,449.25

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Double scale
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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.