Home / 65,873,869.42-90,904,829.96-36,505,142.14

Finding the Fourth Proportional to 65,873,869.42, 90,904,829.96 and 36,505,142.14

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Solution

The fourth proportional to 65,873,869.42, 90,904,829.96 and 36,505,142.14 is: 50,376,481.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,873,869.42 : 90,904,829.96 = 36,505,142.14 : x
  2. Step 2: Convert to fraction form
    65,873,869.42/90,904,829.96 = 36,505,142.14/x
  3. Step 3: Cross multiply
    65,873,869.42x = 90,904,829.96 × 36,505,142.14
  4. Step 4: Simplify right side
    65,873,869.42x = 3,318,493,738,902,330.50
  5. Step 5: Solve for x
    x = 3,318,493,738,902,330.50/65,873,869.42
  6. Step 6: Final answer
    x = 50,376,481.12

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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.