Home / 187,146,590.40-280,738,645.20-64,308,729.60

Finding the Fourth Proportional to 187,146,590.40, 280,738,645.20 and 64,308,729.60

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Solution

The fourth proportional to 187,146,590.40, 280,738,645.20 and 64,308,729.60 is: 96,469,540.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,146,590.40 : 280,738,645.20 = 64,308,729.60 : x
  2. Step 2: Convert to fraction form
    187,146,590.40/280,738,645.20 = 64,308,729.60/x
  3. Step 3: Cross multiply
    187,146,590.40x = 280,738,645.20 × 64,308,729.60
  4. Step 4: Simplify right side
    187,146,590.40x = 18,053,945,622,437,136
  5. Step 5: Solve for x
    x = 18,053,945,622,437,136/187,146,590.40
  6. Step 6: Final answer
    x = 96,469,540.72

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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.