Home / 1,313,093,318.22-1,969,637,548.80-427,777,620.81

Finding the Fourth Proportional to 1,313,093,318.22, 1,969,637,548.80 and 427,777,620.81

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Solution

The fourth proportional to 1,313,093,318.22, 1,969,637,548.80 and 427,777,620.81 is: 641,665,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,093,318.22 : 1,969,637,548.80 = 427,777,620.81 : x
  2. Step 2: Convert to fraction form
    1,313,093,318.22/1,969,637,548.80 = 427,777,620.81/x
  3. Step 3: Cross multiply
    1,313,093,318.22x = 1,969,637,548.80 × 427,777,620.81
  4. Step 4: Simplify right side
    1,313,093,318.22x = 842,566,864,483,704,192
  5. Step 5: Solve for x
    x = 842,566,864,483,704,192/1,313,093,318.22
  6. Step 6: Final answer
    x = 641,665,640.05

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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.