Home / 251,232,083.84-376,847,659.20-78,722,111.36

Finding the Fourth Proportional to 251,232,083.84, 376,847,659.20 and 78,722,111.36

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Solution

The fourth proportional to 251,232,083.84, 376,847,659.20 and 78,722,111.36 is: 118,083,020.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,232,083.84 : 376,847,659.20 = 78,722,111.36 : x
  2. Step 2: Convert to fraction form
    251,232,083.84/376,847,659.20 = 78,722,111.36/x
  3. Step 3: Cross multiply
    251,232,083.84x = 376,847,659.20 × 78,722,111.36
  4. Step 4: Simplify right side
    251,232,083.84x = 29,666,243,393,297,728
  5. Step 5: Solve for x
    x = 29,666,243,393,297,728/251,232,083.84
  6. Step 6: Final answer
    x = 118,083,020.85

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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.