Home / 13,309,912.60-19,951,090.80-7,231,802.20

Finding the Fourth Proportional to 13,309,912.60, 19,951,090.80 and 7,231,802.20

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Solution

The fourth proportional to 13,309,912.60, 19,951,090.80 and 7,231,802.20 is: 10,840,217.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,912.60 : 19,951,090.80 = 7,231,802.20 : x
  2. Step 2: Convert to fraction form
    13,309,912.60/19,951,090.80 = 7,231,802.20/x
  3. Step 3: Cross multiply
    13,309,912.60x = 19,951,090.80 × 7,231,802.20
  4. Step 4: Simplify right side
    13,309,912.60x = 144,282,342,339,839.78
  5. Step 5: Solve for x
    x = 144,282,342,339,839.78/13,309,912.60
  6. Step 6: Final answer
    x = 10,840,217.11

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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.