Home / 136,250,490.42-187,997,608.53-78,292,540.98

Finding the Fourth Proportional to 136,250,490.42, 187,997,608.53 and 78,292,540.98

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Solution

The fourth proportional to 136,250,490.42, 187,997,608.53 and 78,292,540.98 is: 108,027,577.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,250,490.42 : 187,997,608.53 = 78,292,540.98 : x
  2. Step 2: Convert to fraction form
    136,250,490.42/187,997,608.53 = 78,292,540.98/x
  3. Step 3: Cross multiply
    136,250,490.42x = 187,997,608.53 × 78,292,540.98
  4. Step 4: Simplify right side
    136,250,490.42x = 14,718,810,469,977,024
  5. Step 5: Solve for x
    x = 14,718,810,469,977,024/136,250,490.42
  6. Step 6: Final answer
    x = 108,027,577.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.