Home / 20,242,040.90-30,363,061.35-18,289,487.30

Finding the Fourth Proportional to 20,242,040.90, 30,363,061.35 and 18,289,487.30

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Solution

The fourth proportional to 20,242,040.90, 30,363,061.35 and 18,289,487.30 is: 27,434,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242,040.90 : 30,363,061.35 = 18,289,487.30 : x
  2. Step 2: Convert to fraction form
    20,242,040.90/30,363,061.35 = 18,289,487.30/x
  3. Step 3: Cross multiply
    20,242,040.90x = 30,363,061.35 × 18,289,487.30
  4. Step 4: Simplify right side
    20,242,040.90x = 555,324,824,949,945.88
  5. Step 5: Solve for x
    x = 555,324,824,949,945.88/20,242,040.90
  6. Step 6: Final answer
    x = 27,434,230.95

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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.