Home / 206,039,941.60-309,059,912.40-52,697,999.20

Finding the Fourth Proportional to 206,039,941.60, 309,059,912.40 and 52,697,999.20

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Solution

The fourth proportional to 206,039,941.60, 309,059,912.40 and 52,697,999.20 is: 79,046,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,039,941.60 : 309,059,912.40 = 52,697,999.20 : x
  2. Step 2: Convert to fraction form
    206,039,941.60/309,059,912.40 = 52,697,999.20/x
  3. Step 3: Cross multiply
    206,039,941.60x = 309,059,912.40 × 52,697,999.20
  4. Step 4: Simplify right side
    206,039,941.60x = 16,286,839,016,407,270
  5. Step 5: Solve for x
    x = 16,286,839,016,407,270/206,039,941.60
  6. Step 6: Final answer
    x = 79,046,998.80

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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.