Home / 263,801,112,302.40-393,925,227,662.99-215,437,819,906.60

Finding the Fourth Proportional to 263,801,112,302.40, 393,925,227,662.99 and 215,437,819,906.60

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Solution

The fourth proportional to 263,801,112,302.40, 393,925,227,662.99 and 215,437,819,906.60 is: 321,705,968,232.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,801,112,302.40 : 393,925,227,662.99 = 215,437,819,906.60 : x
  2. Step 2: Convert to fraction form
    263,801,112,302.40/393,925,227,662.99 = 215,437,819,906.60/x
  3. Step 3: Cross multiply
    263,801,112,302.40x = 393,925,227,662.99 × 215,437,819,906.60
  4. Step 4: Simplify right side
    263,801,112,302.40x = 84,866,392,253,925,651,644,416
  5. Step 5: Solve for x
    x = 84,866,392,253,925,651,644,416/263,801,112,302.40
  6. Step 6: Final answer
    x = 321,705,968,232.01

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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.