Home / 275,296,990.25-379,919,871.21-149,843,126.93

Finding the Fourth Proportional to 275,296,990.25, 379,919,871.21 and 149,843,126.93

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Solution

The fourth proportional to 275,296,990.25, 379,919,871.21 and 149,843,126.93 is: 206,788,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,296,990.25 : 379,919,871.21 = 149,843,126.93 : x
  2. Step 2: Convert to fraction form
    275,296,990.25/379,919,871.21 = 149,843,126.93/x
  3. Step 3: Cross multiply
    275,296,990.25x = 379,919,871.21 × 149,843,126.93
  4. Step 4: Simplify right side
    275,296,990.25x = 56,928,381,484,949,280
  5. Step 5: Solve for x
    x = 56,928,381,484,949,280/275,296,990.25
  6. Step 6: Final answer
    x = 206,788,971.55

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Why These Related Problems?

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