Home / 281,407,731.35-388,342,706.09-155,968,025.85

Finding the Fourth Proportional to 281,407,731.35, 388,342,706.09 and 155,968,025.85

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Solution

The fourth proportional to 281,407,731.35, 388,342,706.09 and 155,968,025.85 is: 215,235,896.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,407,731.35 : 388,342,706.09 = 155,968,025.85 : x
  2. Step 2: Convert to fraction form
    281,407,731.35/388,342,706.09 = 155,968,025.85/x
  3. Step 3: Cross multiply
    281,407,731.35x = 388,342,706.09 × 155,968,025.85
  4. Step 4: Simplify right side
    281,407,731.35x = 60,569,045,221,324,224
  5. Step 5: Solve for x
    x = 60,569,045,221,324,224/281,407,731.35
  6. Step 6: Final answer
    x = 215,235,896.09

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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.