Home / 342,143,998.60-513,215,997.90-206,095,102.60

Finding the Fourth Proportional to 342,143,998.60, 513,215,997.90 and 206,095,102.60

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Solution

The fourth proportional to 342,143,998.60, 513,215,997.90 and 206,095,102.60 is: 309,142,653.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,143,998.60 : 513,215,997.90 = 206,095,102.60 : x
  2. Step 2: Convert to fraction form
    342,143,998.60/513,215,997.90 = 206,095,102.60/x
  3. Step 3: Cross multiply
    342,143,998.60x = 513,215,997.90 × 206,095,102.60
  4. Step 4: Simplify right side
    342,143,998.60x = 105,771,303,743,161,872
  5. Step 5: Solve for x
    x = 105,771,303,743,161,872/342,143,998.60
  6. Step 6: Final answer
    x = 309,142,653.90

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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.