Home / 20,111,842.20-30,167,763.30-18,852,130.20

Finding the Fourth Proportional to 20,111,842.20, 30,167,763.30 and 18,852,130.20

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Solution

The fourth proportional to 20,111,842.20, 30,167,763.30 and 18,852,130.20 is: 28,278,195.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,842.20 : 30,167,763.30 = 18,852,130.20 : x
  2. Step 2: Convert to fraction form
    20,111,842.20/30,167,763.30 = 18,852,130.20/x
  3. Step 3: Cross multiply
    20,111,842.20x = 30,167,763.30 × 18,852,130.20
  4. Step 4: Simplify right side
    20,111,842.20x = 568,726,601,574,381.62
  5. Step 5: Solve for x
    x = 568,726,601,574,381.62/20,111,842.20
  6. Step 6: Final answer
    x = 28,278,195.30

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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.