Home / 280,167,145.53-420,505,739.16-149,119,441.44

Finding the Fourth Proportional to 280,167,145.53, 420,505,739.16 and 149,119,441.44

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Solution

The fourth proportional to 280,167,145.53, 420,505,739.16 and 149,119,441.44 is: 223,814,897.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,167,145.53 : 420,505,739.16 = 149,119,441.44 : x
  2. Step 2: Convert to fraction form
    280,167,145.53/420,505,739.16 = 149,119,441.44/x
  3. Step 3: Cross multiply
    280,167,145.53x = 420,505,739.16 × 149,119,441.44
  4. Step 4: Simplify right side
    280,167,145.53x = 62,705,580,945,853,536
  5. Step 5: Solve for x
    x = 62,705,580,945,853,536/280,167,145.53
  6. Step 6: Final answer
    x = 223,814,897.45

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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.