Home / 812,716,409.30-1,219,074,613.95-199,300,635.05

Finding the Fourth Proportional to 812,716,409.30, 1,219,074,613.95 and 199,300,635.05

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Solution

The fourth proportional to 812,716,409.30, 1,219,074,613.95 and 199,300,635.05 is: 298,950,952.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,716,409.30 : 1,219,074,613.95 = 199,300,635.05 : x
  2. Step 2: Convert to fraction form
    812,716,409.30/1,219,074,613.95 = 199,300,635.05/x
  3. Step 3: Cross multiply
    812,716,409.30x = 1,219,074,613.95 × 199,300,635.05
  4. Step 4: Simplify right side
    812,716,409.30x = 242,962,344,733,568,608
  5. Step 5: Solve for x
    x = 242,962,344,733,568,608/812,716,409.30
  6. Step 6: Final answer
    x = 298,950,952.58

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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.