Home / 2,800,987.40-4,201,481.10-2,779,992.20

Finding the Fourth Proportional to 2,800,987.40, 4,201,481.10 and 2,779,992.20

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Solution

The fourth proportional to 2,800,987.40, 4,201,481.10 and 2,779,992.20 is: 4,169,988.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,987.40 : 4,201,481.10 = 2,779,992.20 : x
  2. Step 2: Convert to fraction form
    2,800,987.40/4,201,481.10 = 2,779,992.20/x
  3. Step 3: Cross multiply
    2,800,987.40x = 4,201,481.10 × 2,779,992.20
  4. Step 4: Simplify right side
    2,800,987.40x = 11,680,084,686,447.42
  5. Step 5: Solve for x
    x = 11,680,084,686,447.42/2,800,987.40
  6. Step 6: Final answer
    x = 4,169,988.30

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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.