Home / 499,601,442.33-689,522,142.96-287,867,736.36

Finding the Fourth Proportional to 499,601,442.33, 689,522,142.96 and 287,867,736.36

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Solution

The fourth proportional to 499,601,442.33, 689,522,142.96 and 287,867,736.36 is: 397,299,050.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,601,442.33 : 689,522,142.96 = 287,867,736.36 : x
  2. Step 2: Convert to fraction form
    499,601,442.33/689,522,142.96 = 287,867,736.36/x
  3. Step 3: Cross multiply
    499,601,442.33x = 689,522,142.96 × 287,867,736.36
  4. Step 4: Simplify right side
    499,601,442.33x = 198,491,178,463,991,520
  5. Step 5: Solve for x
    x = 198,491,178,463,991,520/499,601,442.33
  6. Step 6: Final answer
    x = 397,299,050.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.