Home / 279,936,386.20-419,904,579.30-222,115,605.40

Finding the Fourth Proportional to 279,936,386.20, 419,904,579.30 and 222,115,605.40

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Solution

The fourth proportional to 279,936,386.20, 419,904,579.30 and 222,115,605.40 is: 333,173,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,386.20 : 419,904,579.30 = 222,115,605.40 : x
  2. Step 2: Convert to fraction form
    279,936,386.20/419,904,579.30 = 222,115,605.40/x
  3. Step 3: Cross multiply
    279,936,386.20x = 419,904,579.30 × 222,115,605.40
  4. Step 4: Simplify right side
    279,936,386.20x = 93,267,359,841,451,808
  5. Step 5: Solve for x
    x = 93,267,359,841,451,808/279,936,386.20
  6. Step 6: Final answer
    x = 333,173,408.10

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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.