Home / 18,901,785.90-28,334,016.45-9,309,312.30

Finding the Fourth Proportional to 18,901,785.90, 28,334,016.45 and 9,309,312.30

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Solution

The fourth proportional to 18,901,785.90, 28,334,016.45 and 9,309,312.30 is: 13,954,777.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,901,785.90 : 28,334,016.45 = 9,309,312.30 : x
  2. Step 2: Convert to fraction form
    18,901,785.90/28,334,016.45 = 9,309,312.30/x
  3. Step 3: Cross multiply
    18,901,785.90x = 28,334,016.45 × 9,309,312.30
  4. Step 4: Simplify right side
    18,901,785.90x = 263,770,207,846,387.34
  5. Step 5: Solve for x
    x = 263,770,207,846,387.34/18,901,785.90
  6. Step 6: Final answer
    x = 13,954,777.04

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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.