Home / 3,909,174,399.78-5,394,622,346.13-2,124,921,693.69

Finding the Fourth Proportional to 3,909,174,399.78, 5,394,622,346.13 and 2,124,921,693.69

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Solution

The fourth proportional to 3,909,174,399.78, 5,394,622,346.13 and 2,124,921,693.69 is: 2,932,371,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909,174,399.78 : 5,394,622,346.13 = 2,124,921,693.69 : x
  2. Step 2: Convert to fraction form
    3,909,174,399.78/5,394,622,346.13 = 2,124,921,693.69/x
  3. Step 3: Cross multiply
    3,909,174,399.78x = 5,394,622,346.13 × 2,124,921,693.69
  4. Step 4: Simplify right side
    3,909,174,399.78x = 11,463,150,052,575,311,872
  5. Step 5: Solve for x
    x = 11,463,150,052,575,311,872/3,909,174,399.78
  6. Step 6: Final answer
    x = 2,932,371,104.55

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1.5x scale

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.