Home / 263,801,112,299.40-393,925,227,658.52-215,437,819,903.60

Finding the Fourth Proportional to 263,801,112,299.40, 393,925,227,658.52 and 215,437,819,903.60

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Solution

The fourth proportional to 263,801,112,299.40, 393,925,227,658.52 and 215,437,819,903.60 is: 321,705,968,227.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,801,112,299.40 : 393,925,227,658.52 = 215,437,819,903.60 : x
  2. Step 2: Convert to fraction form
    263,801,112,299.40/393,925,227,658.52 = 215,437,819,903.60/x
  3. Step 3: Cross multiply
    263,801,112,299.40x = 393,925,227,658.52 × 215,437,819,903.60
  4. Step 4: Simplify right side
    263,801,112,299.40x = 84,866,392,251,780,869,128,192
  5. Step 5: Solve for x
    x = 84,866,392,251,780,869,128,192/263,801,112,299.40
  6. Step 6: Final answer
    x = 321,705,968,227.54

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1.5x scale

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.