Home / 279,936,019.36-419,904,029.02-207,376,608.16

Finding the Fourth Proportional to 279,936,019.36, 419,904,029.02 and 207,376,608.16

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Solution

The fourth proportional to 279,936,019.36, 419,904,029.02 and 207,376,608.16 is: 311,064,912.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,019.36 : 419,904,029.02 = 207,376,608.16 : x
  2. Step 2: Convert to fraction form
    279,936,019.36/419,904,029.02 = 207,376,608.16/x
  3. Step 3: Cross multiply
    279,936,019.36x = 419,904,029.02 × 207,376,608.16
  4. Step 4: Simplify right side
    279,936,019.36x = 87,078,273,290,885,808
  5. Step 5: Solve for x
    x = 87,078,273,290,885,808/279,936,019.36
  6. Step 6: Final answer
    x = 311,064,912.23

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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.