Home / 279,334,095.30-419,001,147.81-85,246,505.82

Finding the Fourth Proportional to 279,334,095.30, 419,001,147.81 and 85,246,505.82

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Solution

The fourth proportional to 279,334,095.30, 419,001,147.81 and 85,246,505.82 is: 127,869,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,334,095.30 : 419,001,147.81 = 85,246,505.82 : x
  2. Step 2: Convert to fraction form
    279,334,095.30/419,001,147.81 = 85,246,505.82/x
  3. Step 3: Cross multiply
    279,334,095.30x = 419,001,147.81 × 85,246,505.82
  4. Step 4: Simplify right side
    279,334,095.30x = 35,718,383,785,371,844
  5. Step 5: Solve for x
    x = 35,718,383,785,371,844/279,334,095.30
  6. Step 6: Final answer
    x = 127,869,760.21

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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.