Home / 12,659,618.72-18,989,428.32-3,074,932.67

Finding the Fourth Proportional to 12,659,618.72, 18,989,428.32 and 3,074,932.67

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Solution

The fourth proportional to 12,659,618.72, 18,989,428.32 and 3,074,932.67 is: 4,612,399.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659,618.72 : 18,989,428.32 = 3,074,932.67 : x
  2. Step 2: Convert to fraction form
    12,659,618.72/18,989,428.32 = 3,074,932.67/x
  3. Step 3: Cross multiply
    12,659,618.72x = 18,989,428.32 × 3,074,932.67
  4. Step 4: Simplify right side
    12,659,618.72x = 58,391,213,430,844.08
  5. Step 5: Solve for x
    x = 58,391,213,430,844.08/12,659,618.72
  6. Step 6: Final answer
    x = 4,612,399.05

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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.