Home / 206,308,542.02-309,397,157.87-68,108,417.13

Finding the Fourth Proportional to 206,308,542.02, 309,397,157.87 and 68,108,417.13

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Solution

The fourth proportional to 206,308,542.02, 309,397,157.87 and 68,108,417.13 is: 102,140,951.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,308,542.02 : 309,397,157.87 = 68,108,417.13 : x
  2. Step 2: Convert to fraction form
    206,308,542.02/309,397,157.87 = 68,108,417.13/x
  3. Step 3: Cross multiply
    206,308,542.02x = 309,397,157.87 × 68,108,417.13
  4. Step 4: Simplify right side
    206,308,542.02x = 21,072,550,686,705,880
  5. Step 5: Solve for x
    x = 21,072,550,686,705,880/206,308,542.02
  6. Step 6: Final answer
    x = 102,140,951.03

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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.