Home / 421,196,534,581.82-581,252,332,386.11-228,508,701,515.61

Finding the Fourth Proportional to 421,196,534,581.82, 581,252,332,386.11 and 228,508,701,515.61

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Solution

The fourth proportional to 421,196,534,581.82, 581,252,332,386.11 and 228,508,701,515.61 is: 315,342,612,821.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,196,534,581.82 : 581,252,332,386.11 = 228,508,701,515.61 : x
  2. Step 2: Convert to fraction form
    421,196,534,581.82/581,252,332,386.11 = 228,508,701,515.61/x
  3. Step 3: Cross multiply
    421,196,534,581.82x = 581,252,332,386.11 × 228,508,701,515.61
  4. Step 4: Simplify right side
    421,196,534,581.82x = 132,821,215,726,469,728,174,080
  5. Step 5: Solve for x
    x = 132,821,215,726,469,728,174,080/421,196,534,581.82
  6. Step 6: Final answer
    x = 315,342,612,821.68

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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.