Home / 558,400,636.32-770,568,021.11-320,074,964.65

Finding the Fourth Proportional to 558,400,636.32, 770,568,021.11 and 320,074,964.65

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Solution

The fourth proportional to 558,400,636.32, 770,568,021.11 and 320,074,964.65 is: 441,689,203.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,400,636.32 : 770,568,021.11 = 320,074,964.65 : x
  2. Step 2: Convert to fraction form
    558,400,636.32/770,568,021.11 = 320,074,964.65/x
  3. Step 3: Cross multiply
    558,400,636.32x = 770,568,021.11 × 320,074,964.65
  4. Step 4: Simplify right side
    558,400,636.32x = 246,639,532,117,203,680
  5. Step 5: Solve for x
    x = 246,639,532,117,203,680/558,400,636.32
  6. Step 6: Final answer
    x = 441,689,203.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.