Home / 203,499,762.72-280,902,720.12-120,993,350.64

Finding the Fourth Proportional to 203,499,762.72, 280,902,720.12 and 120,993,350.64

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Solution

The fourth proportional to 203,499,762.72, 280,902,720.12 and 120,993,350.64 is: 167,014,255.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,499,762.72 : 280,902,720.12 = 120,993,350.64 : x
  2. Step 2: Convert to fraction form
    203,499,762.72/280,902,720.12 = 120,993,350.64/x
  3. Step 3: Cross multiply
    203,499,762.72x = 280,902,720.12 × 120,993,350.64
  4. Step 4: Simplify right side
    203,499,762.72x = 33,987,361,311,208,944
  5. Step 5: Solve for x
    x = 33,987,361,311,208,944/203,499,762.72
  6. Step 6: Final answer
    x = 167,014,255.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.