Home / 659,656,172.10-989,596,232.55-199,590,687.30

Finding the Fourth Proportional to 659,656,172.10, 989,596,232.55 and 199,590,687.30

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Solution

The fourth proportional to 659,656,172.10, 989,596,232.55 and 199,590,687.30 is: 299,419,910.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,656,172.10 : 989,596,232.55 = 199,590,687.30 : x
  2. Step 2: Convert to fraction form
    659,656,172.10/989,596,232.55 = 199,590,687.30/x
  3. Step 3: Cross multiply
    659,656,172.10x = 989,596,232.55 × 199,590,687.30
  4. Step 4: Simplify right side
    659,656,172.10x = 197,514,192,204,145,120
  5. Step 5: Solve for x
    x = 197,514,192,204,145,120/659,656,172.10
  6. Step 6: Final answer
    x = 299,419,910.79

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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.