Home / 279,936,389.60-419,904,584.40-260,804,513.60

Finding the Fourth Proportional to 279,936,389.60, 419,904,584.40 and 260,804,513.60

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Solution

The fourth proportional to 279,936,389.60, 419,904,584.40 and 260,804,513.60 is: 391,206,770.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,389.60 : 419,904,584.40 = 260,804,513.60 : x
  2. Step 2: Convert to fraction form
    279,936,389.60/419,904,584.40 = 260,804,513.60/x
  3. Step 3: Cross multiply
    279,936,389.60x = 419,904,584.40 × 260,804,513.60
  4. Step 4: Simplify right side
    279,936,389.60x = 109,513,010,892,852,144
  5. Step 5: Solve for x
    x = 109,513,010,892,852,144/279,936,389.60
  6. Step 6: Final answer
    x = 391,206,770.40

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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.