Home / 143,933,605.60-198,611,305.92-81,206,047.12

Finding the Fourth Proportional to 143,933,605.60, 198,611,305.92 and 81,206,047.12

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Solution

The fourth proportional to 143,933,605.60, 198,611,305.92 and 81,206,047.12 is: 112,054,714.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,933,605.60 : 198,611,305.92 = 81,206,047.12 : x
  2. Step 2: Convert to fraction form
    143,933,605.60/198,611,305.92 = 81,206,047.12/x
  3. Step 3: Cross multiply
    143,933,605.60x = 198,611,305.92 × 81,206,047.12
  4. Step 4: Simplify right side
    143,933,605.60x = 16,128,439,067,104,254
  5. Step 5: Solve for x
    x = 16,128,439,067,104,254/143,933,605.60
  6. Step 6: Final answer
    x = 112,054,714.39

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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.