Home / 5,431,571.60-8,147,357.40-2,912,147.60

Finding the Fourth Proportional to 5,431,571.60, 8,147,357.40 and 2,912,147.60

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Solution

The fourth proportional to 5,431,571.60, 8,147,357.40 and 2,912,147.60 is: 4,368,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431,571.60 : 8,147,357.40 = 2,912,147.60 : x
  2. Step 2: Convert to fraction form
    5,431,571.60/8,147,357.40 = 2,912,147.60/x
  3. Step 3: Cross multiply
    5,431,571.60x = 8,147,357.40 × 2,912,147.60
  4. Step 4: Simplify right side
    5,431,571.60x = 23,726,307,298,752.24
  5. Step 5: Solve for x
    x = 23,726,307,298,752.24/5,431,571.60
  6. Step 6: Final answer
    x = 4,368,221.40

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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.