Home / 263,801,112,298.63-393,925,227,657.33-215,437,819,902.85

Finding the Fourth Proportional to 263,801,112,298.63, 393,925,227,657.33 and 215,437,819,902.85

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Solution

The fourth proportional to 263,801,112,298.63, 393,925,227,657.33 and 215,437,819,902.85 is: 321,705,968,226.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,801,112,298.63 : 393,925,227,657.33 = 215,437,819,902.85 : x
  2. Step 2: Convert to fraction form
    263,801,112,298.63/393,925,227,657.33 = 215,437,819,902.85/x
  3. Step 3: Cross multiply
    263,801,112,298.63x = 393,925,227,657.33 × 215,437,819,902.85
  4. Step 4: Simplify right side
    263,801,112,298.63x = 84,866,392,251,229,049,716,736
  5. Step 5: Solve for x
    x = 84,866,392,251,229,049,716,736/263,801,112,298.63
  6. Step 6: Final answer
    x = 321,705,968,226.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.