Home / 13,187,765.12-18,208,002.81-8,233,756.92

Finding the Fourth Proportional to 13,187,765.12, 18,208,002.81 and 8,233,756.92

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Solution

The fourth proportional to 13,187,765.12, 18,208,002.81 and 8,233,756.92 is: 11,368,133.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187,765.12 : 18,208,002.81 = 8,233,756.92 : x
  2. Step 2: Convert to fraction form
    13,187,765.12/18,208,002.81 = 8,233,756.92/x
  3. Step 3: Cross multiply
    13,187,765.12x = 18,208,002.81 × 8,233,756.92
  4. Step 4: Simplify right side
    13,187,765.12x = 149,920,269,120,778.66
  5. Step 5: Solve for x
    x = 149,920,269,120,778.66/13,187,765.12
  6. Step 6: Final answer
    x = 11,368,133.10

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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.