Home / 12,612,660.30-18,921,028.14-5,327,215.32

Finding the Fourth Proportional to 12,612,660.30, 18,921,028.14 and 5,327,215.32

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Solution

The fourth proportional to 12,612,660.30, 18,921,028.14 and 5,327,215.32 is: 7,991,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612,660.30 : 18,921,028.14 = 5,327,215.32 : x
  2. Step 2: Convert to fraction form
    12,612,660.30/18,921,028.14 = 5,327,215.32/x
  3. Step 3: Cross multiply
    12,612,660.30x = 18,921,028.14 × 5,327,215.32
  4. Step 4: Simplify right side
    12,612,660.30x = 100,796,390,977,559.11
  5. Step 5: Solve for x
    x = 100,796,390,977,559.11/12,612,660.30
  6. Step 6: Final answer
    x = 7,991,683.64

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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.