Home / 206,792,039.80-309,762,906.90-142,168,814.20

Finding the Fourth Proportional to 206,792,039.80, 309,762,906.90 and 142,168,814.20

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Solution

The fourth proportional to 206,792,039.80, 309,762,906.90 and 142,168,814.20 is: 212,960,930.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,792,039.80 : 309,762,906.90 = 142,168,814.20 : x
  2. Step 2: Convert to fraction form
    206,792,039.80/309,762,906.90 = 142,168,814.20/x
  3. Step 3: Cross multiply
    206,792,039.80x = 309,762,906.90 × 142,168,814.20
  4. Step 4: Simplify right side
    206,792,039.80x = 44,038,625,157,117,992
  5. Step 5: Solve for x
    x = 44,038,625,157,117,992/206,792,039.80
  6. Step 6: Final answer
    x = 212,960,930.22

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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.