Home / 91,376,560.30-137,064,840.45-87,345,481.90

Finding the Fourth Proportional to 91,376,560.30, 137,064,840.45 and 87,345,481.90

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Solution

The fourth proportional to 91,376,560.30, 137,064,840.45 and 87,345,481.90 is: 131,018,222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,376,560.30 : 137,064,840.45 = 87,345,481.90 : x
  2. Step 2: Convert to fraction form
    91,376,560.30/137,064,840.45 = 87,345,481.90/x
  3. Step 3: Cross multiply
    91,376,560.30x = 137,064,840.45 × 87,345,481.90
  4. Step 4: Simplify right side
    91,376,560.30x = 11,971,994,540,651,862
  5. Step 5: Solve for x
    x = 11,971,994,540,651,862/91,376,560.30
  6. Step 6: Final answer
    x = 131,018,222.85

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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.