Home / 318,734,965.37-478,241,393.64-111,621,951.08

Finding the Fourth Proportional to 318,734,965.37, 478,241,393.64 and 111,621,951.08

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Solution

The fourth proportional to 318,734,965.37, 478,241,393.64 and 111,621,951.08 is: 167,481,585.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,734,965.37 : 478,241,393.64 = 111,621,951.08 : x
  2. Step 2: Convert to fraction form
    318,734,965.37/478,241,393.64 = 111,621,951.08/x
  3. Step 3: Cross multiply
    318,734,965.37x = 478,241,393.64 × 111,621,951.08
  4. Step 4: Simplify right side
    318,734,965.37x = 53,382,237,444,298,720
  5. Step 5: Solve for x
    x = 53,382,237,444,298,720/318,734,965.37
  6. Step 6: Final answer
    x = 167,481,585.78

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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.