Home / 281,182,115.54-388,001,778.99-155,731,025.04

Finding the Fourth Proportional to 281,182,115.54, 388,001,778.99 and 155,731,025.04

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Solution

The fourth proportional to 281,182,115.54, 388,001,778.99 and 155,731,025.04 is: 214,892,453.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,182,115.54 : 388,001,778.99 = 155,731,025.04 : x
  2. Step 2: Convert to fraction form
    281,182,115.54/388,001,778.99 = 155,731,025.04/x
  3. Step 3: Cross multiply
    281,182,115.54x = 388,001,778.99 × 155,731,025.04
  4. Step 4: Simplify right side
    281,182,115.54x = 60,423,914,759,456,232
  5. Step 5: Solve for x
    x = 60,423,914,759,456,232/281,182,115.54
  6. Step 6: Final answer
    x = 214,892,453.76

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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.