Home / 120,942,187.38-181,305,855.63-47,148,958.26

Finding the Fourth Proportional to 120,942,187.38, 181,305,855.63 and 47,148,958.26

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Solution

The fourth proportional to 120,942,187.38, 181,305,855.63 and 47,148,958.26 is: 70,681,557.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,942,187.38 : 181,305,855.63 = 47,148,958.26 : x
  2. Step 2: Convert to fraction form
    120,942,187.38/181,305,855.63 = 47,148,958.26/x
  3. Step 3: Cross multiply
    120,942,187.38x = 181,305,855.63 × 47,148,958.26
  4. Step 4: Simplify right side
    120,942,187.38x = 8,548,382,219,392,455
  5. Step 5: Solve for x
    x = 8,548,382,219,392,455/120,942,187.38
  6. Step 6: Final answer
    x = 70,681,557.90

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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.