Home / 206,489,823.60-309,734,735.40-155,471,487.60

Finding the Fourth Proportional to 206,489,823.60, 309,734,735.40 and 155,471,487.60

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Solution

The fourth proportional to 206,489,823.60, 309,734,735.40 and 155,471,487.60 is: 233,207,231.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,489,823.60 : 309,734,735.40 = 155,471,487.60 : x
  2. Step 2: Convert to fraction form
    206,489,823.60/309,734,735.40 = 155,471,487.60/x
  3. Step 3: Cross multiply
    206,489,823.60x = 309,734,735.40 × 155,471,487.60
  4. Step 4: Simplify right side
    206,489,823.60x = 48,154,920,074,030,376
  5. Step 5: Solve for x
    x = 48,154,920,074,030,376/206,489,823.60
  6. Step 6: Final answer
    x = 233,207,231.40

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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.