Home / 206,528,755.32-309,815,828.55-68,304,013.02

Finding the Fourth Proportional to 206,528,755.32, 309,815,828.55 and 68,304,013.02

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Solution

The fourth proportional to 206,528,755.32, 309,815,828.55 and 68,304,013.02 is: 102,463,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,528,755.32 : 309,815,828.55 = 68,304,013.02 : x
  2. Step 2: Convert to fraction form
    206,528,755.32/309,815,828.55 = 68,304,013.02/x
  3. Step 3: Cross multiply
    206,528,755.32x = 309,815,828.55 × 68,304,013.02
  4. Step 4: Simplify right side
    206,528,755.32x = 21,161,664,387,081,288
  5. Step 5: Solve for x
    x = 21,161,664,387,081,288/206,528,755.32
  6. Step 6: Final answer
    x = 102,463,525.50

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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.