Home / 13,639,728.12-18,823,002.48-8,058,158.16

Finding the Fourth Proportional to 13,639,728.12, 18,823,002.48 and 8,058,158.16

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Solution

The fourth proportional to 13,639,728.12, 18,823,002.48 and 8,058,158.16 is: 11,120,363.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639,728.12 : 18,823,002.48 = 8,058,158.16 : x
  2. Step 2: Convert to fraction form
    13,639,728.12/18,823,002.48 = 8,058,158.16/x
  3. Step 3: Cross multiply
    13,639,728.12x = 18,823,002.48 × 8,058,158.16
  4. Step 4: Simplify right side
    13,639,728.12x = 151,678,731,029,912.25
  5. Step 5: Solve for x
    x = 151,678,731,029,912.25/13,639,728.12
  6. Step 6: Final answer
    x = 11,120,363.23

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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.