Home / 281,407,605.38-388,342,532.23-155,967,899.73

Finding the Fourth Proportional to 281,407,605.38, 388,342,532.23 and 155,967,899.73

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Solution

The fourth proportional to 281,407,605.38, 388,342,532.23 and 155,967,899.73 is: 215,235,722.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,407,605.38 : 388,342,532.23 = 155,967,899.73 : x
  2. Step 2: Convert to fraction form
    281,407,605.38/388,342,532.23 = 155,967,899.73/x
  3. Step 3: Cross multiply
    281,407,605.38x = 388,342,532.23 × 155,967,899.73
  4. Step 4: Simplify right side
    281,407,605.38x = 60,568,969,127,742,936
  5. Step 5: Solve for x
    x = 60,568,969,127,742,936/281,407,605.38
  6. Step 6: Final answer
    x = 215,235,722.03

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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.