Home / 20,736,072.60-31,104,108.90-18,216,648.60

Finding the Fourth Proportional to 20,736,072.60, 31,104,108.90 and 18,216,648.60

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Solution

The fourth proportional to 20,736,072.60, 31,104,108.90 and 18,216,648.60 is: 27,324,972.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,072.60 : 31,104,108.90 = 18,216,648.60 : x
  2. Step 2: Convert to fraction form
    20,736,072.60/31,104,108.90 = 18,216,648.60/x
  3. Step 3: Cross multiply
    20,736,072.60x = 31,104,108.90 × 18,216,648.60
  4. Step 4: Simplify right side
    20,736,072.60x = 566,612,621,847,432.50
  5. Step 5: Solve for x
    x = 566,612,621,847,432.50/20,736,072.60
  6. Step 6: Final answer
    x = 27,324,972.90

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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.