Home / 421,196,534,584.57-581,252,332,389.90-228,508,701,518.36

Finding the Fourth Proportional to 421,196,534,584.57, 581,252,332,389.90 and 228,508,701,518.36

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Solution

The fourth proportional to 421,196,534,584.57, 581,252,332,389.90 and 228,508,701,518.36 is: 315,342,612,825.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,196,534,584.57 : 581,252,332,389.90 = 228,508,701,518.36 : x
  2. Step 2: Convert to fraction form
    421,196,534,584.57/581,252,332,389.90 = 228,508,701,518.36/x
  3. Step 3: Cross multiply
    421,196,534,584.57x = 581,252,332,389.90 × 228,508,701,518.36
  4. Step 4: Simplify right side
    421,196,534,584.57x = 132,821,215,728,934,234,095,616
  5. Step 5: Solve for x
    x = 132,821,215,728,934,234,095,616/421,196,534,584.57
  6. Step 6: Final answer
    x = 315,342,612,825.48

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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.