Home / 21,652,081.38-29,872,515.42-12,352,971.15

Finding the Fourth Proportional to 21,652,081.38, 29,872,515.42 and 12,352,971.15

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Solution

The fourth proportional to 21,652,081.38, 29,872,515.42 and 12,352,971.15 is: 17,042,902.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,652,081.38 : 29,872,515.42 = 12,352,971.15 : x
  2. Step 2: Convert to fraction form
    21,652,081.38/29,872,515.42 = 12,352,971.15/x
  3. Step 3: Cross multiply
    21,652,081.38x = 29,872,515.42 × 12,352,971.15
  4. Step 4: Simplify right side
    21,652,081.38x = 369,014,321,161,190.19
  5. Step 5: Solve for x
    x = 369,014,321,161,190.19/21,652,081.38
  6. Step 6: Final answer
    x = 17,042,902.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.