Home / 47,942,382.73-71,964,749.85-20,662,138.39

Finding the Fourth Proportional to 47,942,382.73, 71,964,749.85 and 20,662,138.39

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Solution

The fourth proportional to 47,942,382.73, 71,964,749.85 and 20,662,138.39 is: 31,015,263.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,942,382.73 : 71,964,749.85 = 20,662,138.39 : x
  2. Step 2: Convert to fraction form
    47,942,382.73/71,964,749.85 = 20,662,138.39/x
  3. Step 3: Cross multiply
    47,942,382.73x = 71,964,749.85 × 20,662,138.39
  4. Step 4: Simplify right side
    47,942,382.73x = 1,486,945,620,602,431.75
  5. Step 5: Solve for x
    x = 1,486,945,620,602,431.75/47,942,382.73
  6. Step 6: Final answer
    x = 31,015,263.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.