Home / 13,438,020.82-20,145,095.07-5,238,773.14

Finding the Fourth Proportional to 13,438,020.82, 20,145,095.07 and 5,238,773.14

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Solution

The fourth proportional to 13,438,020.82, 20,145,095.07 and 5,238,773.14 is: 7,853,506.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,020.82 : 20,145,095.07 = 5,238,773.14 : x
  2. Step 2: Convert to fraction form
    13,438,020.82/20,145,095.07 = 5,238,773.14/x
  3. Step 3: Cross multiply
    13,438,020.82x = 20,145,095.07 × 5,238,773.14
  4. Step 4: Simplify right side
    13,438,020.82x = 105,535,582,955,462.42
  5. Step 5: Solve for x
    x = 105,535,582,955,462.42/13,438,020.82
  6. Step 6: Final answer
    x = 7,853,506.43

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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.