Home / 66,203,125.53-99,313,365.21-21,872,683.42

Finding the Fourth Proportional to 66,203,125.53, 99,313,365.21 and 21,872,683.42

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Solution

The fourth proportional to 66,203,125.53, 99,313,365.21 and 21,872,683.42 is: 32,811,891.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,203,125.53 : 99,313,365.21 = 21,872,683.42 : x
  2. Step 2: Convert to fraction form
    66,203,125.53/99,313,365.21 = 21,872,683.42/x
  3. Step 3: Cross multiply
    66,203,125.53x = 99,313,365.21 × 21,872,683.42
  4. Step 4: Simplify right side
    66,203,125.53x = 2,172,249,796,613,171.75
  5. Step 5: Solve for x
    x = 2,172,249,796,613,171.75/66,203,125.53
  6. Step 6: Final answer
    x = 32,811,891.87

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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.