Home / 1,991,777,424.86-2,987,677,513.43-827,245,916.54

Finding the Fourth Proportional to 1,991,777,424.86, 2,987,677,513.43 and 827,245,916.54

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Solution

The fourth proportional to 1,991,777,424.86, 2,987,677,513.43 and 827,245,916.54 is: 1,240,873,599.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,777,424.86 : 2,987,677,513.43 = 827,245,916.54 : x
  2. Step 2: Convert to fraction form
    1,991,777,424.86/2,987,677,513.43 = 827,245,916.54/x
  3. Step 3: Cross multiply
    1,991,777,424.86x = 2,987,677,513.43 × 827,245,916.54
  4. Step 4: Simplify right side
    1,991,777,424.86x = 2,471,544,022,923,348,480
  5. Step 5: Solve for x
    x = 2,471,544,022,923,348,480/1,991,777,424.86
  6. Step 6: Final answer
    x = 1,240,873,599.67

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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.