Home / 279,936,393.60-419,904,590.40-260,804,517.60

Finding the Fourth Proportional to 279,936,393.60, 419,904,590.40 and 260,804,517.60

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Solution

The fourth proportional to 279,936,393.60, 419,904,590.40 and 260,804,517.60 is: 391,206,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,393.60 : 419,904,590.40 = 260,804,517.60 : x
  2. Step 2: Convert to fraction form
    279,936,393.60/419,904,590.40 = 260,804,517.60/x
  3. Step 3: Cross multiply
    279,936,393.60x = 419,904,590.40 × 260,804,517.60
  4. Step 4: Simplify right side
    279,936,393.60x = 109,513,014,137,297,584
  5. Step 5: Solve for x
    x = 109,513,014,137,297,584/279,936,393.60
  6. Step 6: Final answer
    x = 391,206,776.40

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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.