Home / 10,105,351.20-15,172,023.60-7,977,837.60

Finding the Fourth Proportional to 10,105,351.20, 15,172,023.60 and 7,977,837.60

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Solution

The fourth proportional to 10,105,351.20, 15,172,023.60 and 7,977,837.60 is: 11,977,806.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,105,351.20 : 15,172,023.60 = 7,977,837.60 : x
  2. Step 2: Convert to fraction form
    10,105,351.20/15,172,023.60 = 7,977,837.60/x
  3. Step 3: Cross multiply
    10,105,351.20x = 15,172,023.60 × 7,977,837.60
  4. Step 4: Simplify right side
    10,105,351.20x = 121,039,940,344,167.34
  5. Step 5: Solve for x
    x = 121,039,940,344,167.34/10,105,351.20
  6. Step 6: Final answer
    x = 11,977,806.41

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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.