Home / 18,486,225.12-25,502,394-11,961,960.72

Finding the Fourth Proportional to 18,486,225.12, 25,502,394 and 11,961,960.72

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Solution

The fourth proportional to 18,486,225.12, 25,502,394 and 11,961,960.72 is: 16,501,943.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,486,225.12 : 25,502,394 = 11,961,960.72 : x
  2. Step 2: Convert to fraction form
    18,486,225.12/25,502,394 = 11,961,960.72/x
  3. Step 3: Cross multiply
    18,486,225.12x = 25,502,394 × 11,961,960.72
  4. Step 4: Simplify right side
    18,486,225.12x = 305,058,635,293,963.69
  5. Step 5: Solve for x
    x = 305,058,635,293,963.69/18,486,225.12
  6. Step 6: Final answer
    x = 16,501,943.11

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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.