Home / 148,940,324.31-205,539,539.12-81,966,993.46

Finding the Fourth Proportional to 148,940,324.31, 205,539,539.12 and 81,966,993.46

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Solution

The fourth proportional to 148,940,324.31, 205,539,539.12 and 81,966,993.46 is: 113,115,491.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,940,324.31 : 205,539,539.12 = 81,966,993.46 : x
  2. Step 2: Convert to fraction form
    148,940,324.31/205,539,539.12 = 81,966,993.46/x
  3. Step 3: Cross multiply
    148,940,324.31x = 205,539,539.12 × 81,966,993.46
  4. Step 4: Simplify right side
    148,940,324.31x = 16,847,458,058,820,454
  5. Step 5: Solve for x
    x = 16,847,458,058,820,454/148,940,324.31
  6. Step 6: Final answer
    x = 113,115,491.97

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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.