Home / 421,415,758,251.71-581,554,176,788.98-228,727,970,902.67

Finding the Fourth Proportional to 421,415,758,251.71, 581,554,176,788.98 and 228,727,970,902.67

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Solution

The fourth proportional to 421,415,758,251.71, 581,554,176,788.98 and 228,727,970,902.67 is: 315,644,833,450.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,415,758,251.71 : 581,554,176,788.98 = 228,727,970,902.67 : x
  2. Step 2: Convert to fraction form
    421,415,758,251.71/581,554,176,788.98 = 228,727,970,902.67/x
  3. Step 3: Cross multiply
    421,415,758,251.71x = 581,554,176,788.98 × 228,727,970,902.67
  4. Step 4: Simplify right side
    421,415,758,251.71x = 133,017,706,826,916,022,976,512
  5. Step 5: Solve for x
    x = 133,017,706,826,916,022,976,512/421,415,758,251.71
  6. Step 6: Final answer
    x = 315,644,833,450.83

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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.