Home / 659,651,375.10-989,589,037.05-199,585,890.30

Finding the Fourth Proportional to 659,651,375.10, 989,589,037.05 and 199,585,890.30

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Solution

The fourth proportional to 659,651,375.10, 989,589,037.05 and 199,585,890.30 is: 299,412,714.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,651,375.10 : 989,589,037.05 = 199,585,890.30 : x
  2. Step 2: Convert to fraction form
    659,651,375.10/989,589,037.05 = 199,585,890.30/x
  3. Step 3: Cross multiply
    659,651,375.10x = 989,589,037.05 × 199,585,890.30
  4. Step 4: Simplify right side
    659,651,375.10x = 197,508,008,990,743,936
  5. Step 5: Solve for x
    x = 197,508,008,990,743,936/659,651,375.10
  6. Step 6: Final answer
    x = 299,412,714.72

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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.