Home / 263,801,112,301.40-393,925,227,661.50-215,437,819,905.60

Finding the Fourth Proportional to 263,801,112,301.40, 393,925,227,661.50 and 215,437,819,905.60

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Solution

The fourth proportional to 263,801,112,301.40, 393,925,227,661.50 and 215,437,819,905.60 is: 321,705,968,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,801,112,301.40 : 393,925,227,661.50 = 215,437,819,905.60 : x
  2. Step 2: Convert to fraction form
    263,801,112,301.40/393,925,227,661.50 = 215,437,819,905.60/x
  3. Step 3: Cross multiply
    263,801,112,301.40x = 393,925,227,661.50 × 215,437,819,905.60
  4. Step 4: Simplify right side
    263,801,112,301.40x = 84,866,392,253,210,724,139,008
  5. Step 5: Solve for x
    x = 84,866,392,253,210,724,139,008/263,801,112,301.40
  6. Step 6: Final answer
    x = 321,705,968,230.52

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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.