Home / 148,684,892.82-205,188,569.40-81,708,014.94

Finding the Fourth Proportional to 148,684,892.82, 205,188,569.40 and 81,708,014.94

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Solution

The fourth proportional to 148,684,892.82, 205,188,569.40 and 81,708,014.94 is: 112,758,938.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,684,892.82 : 205,188,569.40 = 81,708,014.94 : x
  2. Step 2: Convert to fraction form
    148,684,892.82/205,188,569.40 = 81,708,014.94/x
  3. Step 3: Cross multiply
    148,684,892.82x = 205,188,569.40 × 81,708,014.94
  4. Step 4: Simplify right side
    148,684,892.82x = 16,765,550,694,052,426
  5. Step 5: Solve for x
    x = 16,765,550,694,052,426/148,684,892.82
  6. Step 6: Final answer
    x = 112,758,938.56

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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.