Home / 5,428,268.70-8,142,403.05-3,515,081.10

Finding the Fourth Proportional to 5,428,268.70, 8,142,403.05 and 3,515,081.10

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Solution

The fourth proportional to 5,428,268.70, 8,142,403.05 and 3,515,081.10 is: 5,272,621.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,268.70 : 8,142,403.05 = 3,515,081.10 : x
  2. Step 2: Convert to fraction form
    5,428,268.70/8,142,403.05 = 3,515,081.10/x
  3. Step 3: Cross multiply
    5,428,268.70x = 8,142,403.05 × 3,515,081.10
  4. Step 4: Simplify right side
    5,428,268.70x = 28,621,207,069,637.36
  5. Step 5: Solve for x
    x = 28,621,207,069,637.36/5,428,268.70
  6. Step 6: Final answer
    x = 5,272,621.65

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Double scale
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Similar ratio
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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.