Home / 2,129,553.60-3,189,081.60-1,415,716.80

Finding the Fourth Proportional to 2,129,553.60, 3,189,081.60 and 1,415,716.80

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Solution

The fourth proportional to 2,129,553.60, 3,189,081.60 and 1,415,716.80 is: 2,120,085.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,553.60 : 3,189,081.60 = 1,415,716.80 : x
  2. Step 2: Convert to fraction form
    2,129,553.60/3,189,081.60 = 1,415,716.80/x
  3. Step 3: Cross multiply
    2,129,553.60x = 3,189,081.60 × 1,415,716.80
  4. Step 4: Simplify right side
    2,129,553.60x = 4,514,836,397,690.88
  5. Step 5: Solve for x
    x = 4,514,836,397,690.88/2,129,553.60
  6. Step 6: Final answer
    x = 2,120,085.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.