Home / 259,728,692.81-389,595,561.48-207,784,251.67

Finding the Fourth Proportional to 259,728,692.81, 389,595,561.48 and 207,784,251.67

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Solution

The fourth proportional to 259,728,692.81, 389,595,561.48 and 207,784,251.67 is: 311,678,395.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,728,692.81 : 389,595,561.48 = 207,784,251.67 : x
  2. Step 2: Convert to fraction form
    259,728,692.81/389,595,561.48 = 207,784,251.67/x
  3. Step 3: Cross multiply
    259,728,692.81x = 389,595,561.48 × 207,784,251.67
  4. Step 4: Simplify right side
    259,728,692.81x = 80,951,822,193,889,904
  5. Step 5: Solve for x
    x = 80,951,822,193,889,904/259,728,692.81
  6. Step 6: Final answer
    x = 311,678,395.33

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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.