Home / 919,380,711.86-1,268,772,299.97-501,719,917.76

Finding the Fourth Proportional to 919,380,711.86, 1,268,772,299.97 and 501,719,917.76

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Solution

The fourth proportional to 919,380,711.86, 1,268,772,299.97 and 501,719,917.76 is: 692,388,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,380,711.86 : 1,268,772,299.97 = 501,719,917.76 : x
  2. Step 2: Convert to fraction form
    919,380,711.86/1,268,772,299.97 = 501,719,917.76/x
  3. Step 3: Cross multiply
    919,380,711.86x = 1,268,772,299.97 × 501,719,917.76
  4. Step 4: Simplify right side
    919,380,711.86x = 636,568,333,998,379,904
  5. Step 5: Solve for x
    x = 636,568,333,998,379,904/919,380,711.86
  6. Step 6: Final answer
    x = 692,388,175.85

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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.