Home / 279,936,618.60-419,904,927.90-192,260,663.40

Finding the Fourth Proportional to 279,936,618.60, 419,904,927.90 and 192,260,663.40

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Solution

The fourth proportional to 279,936,618.60, 419,904,927.90 and 192,260,663.40 is: 288,390,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,618.60 : 419,904,927.90 = 192,260,663.40 : x
  2. Step 2: Convert to fraction form
    279,936,618.60/419,904,927.90 = 192,260,663.40/x
  3. Step 3: Cross multiply
    279,936,618.60x = 419,904,927.90 × 192,260,663.40
  4. Step 4: Simplify right side
    279,936,618.60x = 80,731,200,002,983,168
  5. Step 5: Solve for x
    x = 80,731,200,002,983,168/279,936,618.60
  6. Step 6: Final answer
    x = 288,390,995.10

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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.