Home / 499,573,518.86-689,419,617.90-273,508,730.75

Finding the Fourth Proportional to 499,573,518.86, 689,419,617.90 and 273,508,730.75

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Solution

The fourth proportional to 499,573,518.86, 689,419,617.90 and 273,508,730.75 is: 377,446,516.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,573,518.86 : 689,419,617.90 = 273,508,730.75 : x
  2. Step 2: Convert to fraction form
    499,573,518.86/689,419,617.90 = 273,508,730.75/x
  3. Step 3: Cross multiply
    499,573,518.86x = 689,419,617.90 × 273,508,730.75
  4. Step 4: Simplify right side
    499,573,518.86x = 188,562,284,645,978,976
  5. Step 5: Solve for x
    x = 188,562,284,645,978,976/499,573,518.86
  6. Step 6: Final answer
    x = 377,446,516.93

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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.