Home / 187,490,128.65-258,738,446.94-103,859,540.25

Finding the Fourth Proportional to 187,490,128.65, 258,738,446.94 and 103,859,540.25

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Solution

The fourth proportional to 187,490,128.65, 258,738,446.94 and 103,859,540.25 is: 143,327,311.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,490,128.65 : 258,738,446.94 = 103,859,540.25 : x
  2. Step 2: Convert to fraction form
    187,490,128.65/258,738,446.94 = 103,859,540.25/x
  3. Step 3: Cross multiply
    187,490,128.65x = 258,738,446.94 × 103,859,540.25
  4. Step 4: Simplify right side
    187,490,128.65x = 26,872,456,144,187,420
  5. Step 5: Solve for x
    x = 26,872,456,144,187,420/187,490,128.65
  6. Step 6: Final answer
    x = 143,327,311.88

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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.