Home / 6,871,879.60-10,307,819.40-6,479,969.20

Finding the Fourth Proportional to 6,871,879.60, 10,307,819.40 and 6,479,969.20

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Solution

The fourth proportional to 6,871,879.60, 10,307,819.40 and 6,479,969.20 is: 9,719,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871,879.60 : 10,307,819.40 = 6,479,969.20 : x
  2. Step 2: Convert to fraction form
    6,871,879.60/10,307,819.40 = 6,479,969.20/x
  3. Step 3: Cross multiply
    6,871,879.60x = 10,307,819.40 × 6,479,969.20
  4. Step 4: Simplify right side
    6,871,879.60x = 66,794,352,231,162.48
  5. Step 5: Solve for x
    x = 66,794,352,231,162.48/6,871,879.60
  6. Step 6: Final answer
    x = 9,719,953.80

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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.