Home / 281,407,619.24-388,342,551.42-155,967,913.66

Finding the Fourth Proportional to 281,407,619.24, 388,342,551.42 and 155,967,913.66

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Solution

The fourth proportional to 281,407,619.24, 388,342,551.42 and 155,967,913.66 is: 215,235,741.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,407,619.24 : 388,342,551.42 = 155,967,913.66 : x
  2. Step 2: Convert to fraction form
    281,407,619.24/388,342,551.42 = 155,967,913.66/x
  3. Step 3: Cross multiply
    281,407,619.24x = 388,342,551.42 × 155,967,913.66
  4. Step 4: Simplify right side
    281,407,619.24x = 60,568,977,530,378,672
  5. Step 5: Solve for x
    x = 60,568,977,530,378,672/281,407,619.24
  6. Step 6: Final answer
    x = 215,235,741.29

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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.