Home / 121,384,018.73-167,525,287.72-79,603,234.48

Finding the Fourth Proportional to 121,384,018.73, 167,525,287.72 and 79,603,234.48

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Solution

The fourth proportional to 121,384,018.73, 167,525,287.72 and 79,603,234.48 is: 109,862,524.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,384,018.73 : 167,525,287.72 = 79,603,234.48 : x
  2. Step 2: Convert to fraction form
    121,384,018.73/167,525,287.72 = 79,603,234.48/x
  3. Step 3: Cross multiply
    121,384,018.73x = 167,525,287.72 × 79,603,234.48
  4. Step 4: Simplify right side
    121,384,018.73x = 13,335,554,758,866,998
  5. Step 5: Solve for x
    x = 13,335,554,758,866,998/121,384,018.73
  6. Step 6: Final answer
    x = 109,862,524.73

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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.