Home / 212,090,684,755.80-318,186,590,013.42-68,669,756,183.30

Finding the Fourth Proportional to 212,090,684,755.80, 318,186,590,013.42 and 68,669,756,183.30

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Solution

The fourth proportional to 212,090,684,755.80, 318,186,590,013.42 and 68,669,756,183.30 is: 103,021,005,293.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,090,684,755.80 : 318,186,590,013.42 = 68,669,756,183.30 : x
  2. Step 2: Convert to fraction form
    212,090,684,755.80/318,186,590,013.42 = 68,669,756,183.30/x
  3. Step 3: Cross multiply
    212,090,684,755.80x = 318,186,590,013.42 × 68,669,756,183.30
  4. Step 4: Simplify right side
    212,090,684,755.80x = 21,849,795,557,017,190,924,288
  5. Step 5: Solve for x
    x = 21,849,795,557,017,190,924,288/212,090,684,755.80
  6. Step 6: Final answer
    x = 103,021,005,293.91

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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.