Home / 65,873,871.42-90,904,832.72-36,505,144.14

Finding the Fourth Proportional to 65,873,871.42, 90,904,832.72 and 36,505,144.14

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Solution

The fourth proportional to 65,873,871.42, 90,904,832.72 and 36,505,144.14 is: 50,376,483.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,873,871.42 : 90,904,832.72 = 36,505,144.14 : x
  2. Step 2: Convert to fraction form
    65,873,871.42/90,904,832.72 = 36,505,144.14/x
  3. Step 3: Cross multiply
    65,873,871.42x = 90,904,832.72 × 36,505,144.14
  4. Step 4: Simplify right side
    65,873,871.42x = 3,318,494,021,466,188.50
  5. Step 5: Solve for x
    x = 3,318,494,021,466,188.50/65,873,871.42
  6. Step 6: Final answer
    x = 50,376,483.88

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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.