Home / 20,684,960.30-31,027,440.45-18,452,908.10

Finding the Fourth Proportional to 20,684,960.30, 31,027,440.45 and 18,452,908.10

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Solution

The fourth proportional to 20,684,960.30, 31,027,440.45 and 18,452,908.10 is: 27,679,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684,960.30 : 31,027,440.45 = 18,452,908.10 : x
  2. Step 2: Convert to fraction form
    20,684,960.30/31,027,440.45 = 18,452,908.10/x
  3. Step 3: Cross multiply
    20,684,960.30x = 31,027,440.45 × 18,452,908.10
  4. Step 4: Simplify right side
    20,684,960.30x = 572,546,507,202,072.62
  5. Step 5: Solve for x
    x = 572,546,507,202,072.62/20,684,960.30
  6. Step 6: Final answer
    x = 27,679,362.15

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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.