Home / 355,513,035.56-490,608,709.25-198,882,758.30

Finding the Fourth Proportional to 355,513,035.56, 490,608,709.25 and 198,882,758.30

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Solution

The fourth proportional to 355,513,035.56, 490,608,709.25 and 198,882,758.30 is: 274,458,609.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,513,035.56 : 490,608,709.25 = 198,882,758.30 : x
  2. Step 2: Convert to fraction form
    355,513,035.56/490,608,709.25 = 198,882,758.30/x
  3. Step 3: Cross multiply
    355,513,035.56x = 490,608,709.25 × 198,882,758.30
  4. Step 4: Simplify right side
    355,513,035.56x = 97,573,613,338,195,264
  5. Step 5: Solve for x
    x = 97,573,613,338,195,264/355,513,035.56
  6. Step 6: Final answer
    x = 274,458,609.33

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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.