Home / 300,847,915.29-415,017,327.86-196,487,074.65

Finding the Fourth Proportional to 300,847,915.29, 415,017,327.86 and 196,487,074.65

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Solution

The fourth proportional to 300,847,915.29, 415,017,327.86 and 196,487,074.65 is: 271,052,370.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,847,915.29 : 415,017,327.86 = 196,487,074.65 : x
  2. Step 2: Convert to fraction form
    300,847,915.29/415,017,327.86 = 196,487,074.65/x
  3. Step 3: Cross multiply
    300,847,915.29x = 415,017,327.86 × 196,487,074.65
  4. Step 4: Simplify right side
    300,847,915.29x = 81,545,540,680,271,344
  5. Step 5: Solve for x
    x = 81,545,540,680,271,344/300,847,915.29
  6. Step 6: Final answer
    x = 271,052,370.77

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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.