Home / 168,640,399.20-253,055,077.20-71,579,589.60

Finding the Fourth Proportional to 168,640,399.20, 253,055,077.20 and 71,579,589.60

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Solution

The fourth proportional to 168,640,399.20, 253,055,077.20 and 71,579,589.60 is: 107,409,485.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,640,399.20 : 253,055,077.20 = 71,579,589.60 : x
  2. Step 2: Convert to fraction form
    168,640,399.20/253,055,077.20 = 71,579,589.60/x
  3. Step 3: Cross multiply
    168,640,399.20x = 253,055,077.20 × 71,579,589.60
  4. Step 4: Simplify right side
    168,640,399.20x = 18,113,578,572,172,316
  5. Step 5: Solve for x
    x = 18,113,578,572,172,316/168,640,399.20
  6. Step 6: Final answer
    x = 107,409,485.85

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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.