Home / 2,112,018.80-3,168,028.20-1,987,602.80

Finding the Fourth Proportional to 2,112,018.80, 3,168,028.20 and 1,987,602.80

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Solution

The fourth proportional to 2,112,018.80, 3,168,028.20 and 1,987,602.80 is: 2,981,404.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112,018.80 : 3,168,028.20 = 1,987,602.80 : x
  2. Step 2: Convert to fraction form
    2,112,018.80/3,168,028.20 = 1,987,602.80/x
  3. Step 3: Cross multiply
    2,112,018.80x = 3,168,028.20 × 1,987,602.80
  4. Step 4: Simplify right side
    2,112,018.80x = 6,296,781,720,798.96
  5. Step 5: Solve for x
    x = 6,296,781,720,798.96/2,112,018.80
  6. Step 6: Final answer
    x = 2,981,404.20

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Double scale
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Similar ratio
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1.5x scale

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.