Home / 279,936,267.70-419,904,401.55-253,151,641.30

Finding the Fourth Proportional to 279,936,267.70, 419,904,401.55 and 253,151,641.30

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Solution

The fourth proportional to 279,936,267.70, 419,904,401.55 and 253,151,641.30 is: 379,727,461.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,267.70 : 419,904,401.55 = 253,151,641.30 : x
  2. Step 2: Convert to fraction form
    279,936,267.70/419,904,401.55 = 253,151,641.30/x
  3. Step 3: Cross multiply
    279,936,267.70x = 419,904,401.55 × 253,151,641.30
  4. Step 4: Simplify right side
    279,936,267.70x = 106,299,488,441,476,768
  5. Step 5: Solve for x
    x = 106,299,488,441,476,768/279,936,267.70
  6. Step 6: Final answer
    x = 379,727,461.95

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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.