Home / 3,909,174,436.31-5,394,622,396.50-2,124,921,730.28

Finding the Fourth Proportional to 3,909,174,436.31, 5,394,622,396.50 and 2,124,921,730.28

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Solution

The fourth proportional to 3,909,174,436.31, 5,394,622,396.50 and 2,124,921,730.28 is: 2,932,371,155.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909,174,436.31 : 5,394,622,396.50 = 2,124,921,730.28 : x
  2. Step 2: Convert to fraction form
    3,909,174,436.31/5,394,622,396.50 = 2,124,921,730.28/x
  3. Step 3: Cross multiply
    3,909,174,436.31x = 5,394,622,396.50 × 2,124,921,730.28
  4. Step 4: Simplify right side
    3,909,174,436.31x = 11,463,150,356,951,048,192
  5. Step 5: Solve for x
    x = 11,463,150,356,951,048,192/3,909,174,436.31
  6. Step 6: Final answer
    x = 2,932,371,155.02

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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.