Home / 187,008,440.80-280,512,661.20-105,379,103.20

Finding the Fourth Proportional to 187,008,440.80, 280,512,661.20 and 105,379,103.20

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Solution

The fourth proportional to 187,008,440.80, 280,512,661.20 and 105,379,103.20 is: 158,068,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,008,440.80 : 280,512,661.20 = 105,379,103.20 : x
  2. Step 2: Convert to fraction form
    187,008,440.80/280,512,661.20 = 105,379,103.20/x
  3. Step 3: Cross multiply
    187,008,440.80x = 280,512,661.20 × 105,379,103.20
  4. Step 4: Simplify right side
    187,008,440.80x = 29,560,172,673,501,436
  5. Step 5: Solve for x
    x = 29,560,172,673,501,436/187,008,440.80
  6. Step 6: Final answer
    x = 158,068,654.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.