Home / 206,612,681.46-285,145,640.06-154,310,915.45

Finding the Fourth Proportional to 206,612,681.46, 285,145,640.06 and 154,310,915.45

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Solution

The fourth proportional to 206,612,681.46, 285,145,640.06 and 154,310,915.45 is: 212,964,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,612,681.46 : 285,145,640.06 = 154,310,915.45 : x
  2. Step 2: Convert to fraction form
    206,612,681.46/285,145,640.06 = 154,310,915.45/x
  3. Step 3: Cross multiply
    206,612,681.46x = 285,145,640.06 × 154,310,915.45
  4. Step 4: Simplify right side
    206,612,681.46x = 44,001,084,753,194,840
  5. Step 5: Solve for x
    x = 44,001,084,753,194,840/206,612,681.46
  6. Step 6: Final answer
    x = 212,964,104.83

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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.