Home / 320,131,972.40-441,611,706.96-194,722,525.20

Finding the Fourth Proportional to 320,131,972.40, 441,611,706.96 and 194,722,525.20

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Solution

The fourth proportional to 320,131,972.40, 441,611,706.96 and 194,722,525.20 is: 268,613,428.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,131,972.40 : 441,611,706.96 = 194,722,525.20 : x
  2. Step 2: Convert to fraction form
    320,131,972.40/441,611,706.96 = 194,722,525.20/x
  3. Step 3: Cross multiply
    320,131,972.40x = 441,611,706.96 × 194,722,525.20
  4. Step 4: Simplify right side
    320,131,972.40x = 85,991,746,737,133,600
  5. Step 5: Solve for x
    x = 85,991,746,737,133,600/320,131,972.40
  6. Step 6: Final answer
    x = 268,613,428.68

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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.