Home / 5,147,791.70-7,721,652.90-1,309,581.18

Finding the Fourth Proportional to 5,147,791.70, 7,721,652.90 and 1,309,581.18

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Solution

The fourth proportional to 5,147,791.70, 7,721,652.90 and 1,309,581.18 is: 1,964,362.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147,791.70 : 7,721,652.90 = 1,309,581.18 : x
  2. Step 2: Convert to fraction form
    5,147,791.70/7,721,652.90 = 1,309,581.18/x
  3. Step 3: Cross multiply
    5,147,791.70x = 7,721,652.90 × 1,309,581.18
  4. Step 4: Simplify right side
    5,147,791.70x = 10,112,131,316,332.42
  5. Step 5: Solve for x
    x = 10,112,131,316,332.42/5,147,791.70
  6. Step 6: Final answer
    x = 1,964,362.96

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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.