Home / 499,419,731.32-689,194,152.64-276,401,845.96

Finding the Fourth Proportional to 499,419,731.32, 689,194,152.64 and 276,401,845.96

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Solution

The fourth proportional to 499,419,731.32, 689,194,152.64 and 276,401,845.96 is: 381,431,737.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,419,731.32 : 689,194,152.64 = 276,401,845.96 : x
  2. Step 2: Convert to fraction form
    499,419,731.32/689,194,152.64 = 276,401,845.96/x
  3. Step 3: Cross multiply
    499,419,731.32x = 689,194,152.64 × 276,401,845.96
  4. Step 4: Simplify right side
    499,419,731.32x = 190,494,536,014,533,984
  5. Step 5: Solve for x
    x = 190,494,536,014,533,984/499,419,731.32
  6. Step 6: Final answer
    x = 381,431,737.81

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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.