Home / 117,985,191.80-162,820,260.54-68,455,057.37

Finding the Fourth Proportional to 117,985,191.80, 162,820,260.54 and 68,455,057.37

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Solution

The fourth proportional to 117,985,191.80, 162,820,260.54 and 68,455,057.37 is: 94,468,382.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,985,191.80 : 162,820,260.54 = 68,455,057.37 : x
  2. Step 2: Convert to fraction form
    117,985,191.80/162,820,260.54 = 68,455,057.37/x
  3. Step 3: Cross multiply
    117,985,191.80x = 162,820,260.54 × 68,455,057.37
  4. Step 4: Simplify right side
    117,985,191.80x = 11,145,870,275,449,944
  5. Step 5: Solve for x
    x = 11,145,870,275,449,944/117,985,191.80
  6. Step 6: Final answer
    x = 94,468,382.90

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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.