Home / 187,472,051.75-258,655,468.70-121,287,745.55

Finding the Fourth Proportional to 187,472,051.75, 258,655,468.70 and 121,287,745.55

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Solution

The fourth proportional to 187,472,051.75, 258,655,468.70 and 121,287,745.55 is: 167,340,882.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,472,051.75 : 258,655,468.70 = 121,287,745.55 : x
  2. Step 2: Convert to fraction form
    187,472,051.75/258,655,468.70 = 121,287,745.55/x
  3. Step 3: Cross multiply
    187,472,051.75x = 258,655,468.70 × 121,287,745.55
  4. Step 4: Simplify right side
    187,472,051.75x = 31,371,738,670,901,872
  5. Step 5: Solve for x
    x = 31,371,738,670,901,872/187,472,051.75
  6. Step 6: Final answer
    x = 167,340,882.97

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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.