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Finding the Fourth Proportional to 279,936,321.60, 419,904,482.40 and 240,969,230.40

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Solution

The fourth proportional to 279,936,321.60, 419,904,482.40 and 240,969,230.40 is: 361,453,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,321.60 : 419,904,482.40 = 240,969,230.40 : x
  2. Step 2: Convert to fraction form
    279,936,321.60/419,904,482.40 = 240,969,230.40/x
  3. Step 3: Cross multiply
    279,936,321.60x = 419,904,482.40 × 240,969,230.40
  4. Step 4: Simplify right side
    279,936,321.60x = 101,184,059,965,438,336
  5. Step 5: Solve for x
    x = 101,184,059,965,438,336/279,936,321.60
  6. Step 6: Final answer
    x = 361,453,845.60

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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.