Home / 5,428,878.40-8,143,317.60-3,299,615.20

Finding the Fourth Proportional to 5,428,878.40, 8,143,317.60 and 3,299,615.20

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Solution

The fourth proportional to 5,428,878.40, 8,143,317.60 and 3,299,615.20 is: 4,949,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,878.40 : 8,143,317.60 = 3,299,615.20 : x
  2. Step 2: Convert to fraction form
    5,428,878.40/8,143,317.60 = 3,299,615.20/x
  3. Step 3: Cross multiply
    5,428,878.40x = 8,143,317.60 × 3,299,615.20
  4. Step 4: Simplify right side
    5,428,878.40x = 26,869,814,531,387.52
  5. Step 5: Solve for x
    x = 26,869,814,531,387.52/5,428,878.40
  6. Step 6: Final answer
    x = 4,949,422.80

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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.