Home / 148,940,323.31-205,539,537.74-81,966,992.46

Finding the Fourth Proportional to 148,940,323.31, 205,539,537.74 and 81,966,992.46

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Solution

The fourth proportional to 148,940,323.31, 205,539,537.74 and 81,966,992.46 is: 113,115,490.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,940,323.31 : 205,539,537.74 = 81,966,992.46 : x
  2. Step 2: Convert to fraction form
    148,940,323.31/205,539,537.74 = 81,966,992.46/x
  3. Step 3: Cross multiply
    148,940,323.31x = 205,539,537.74 × 81,966,992.46
  4. Step 4: Simplify right side
    148,940,323.31x = 16,847,457,739,756,630
  5. Step 5: Solve for x
    x = 16,847,457,739,756,630/148,940,323.31
  6. Step 6: Final answer
    x = 113,115,490.59

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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.