Home / 20,705,067.80-31,057,601.70-18,185,643.80

Finding the Fourth Proportional to 20,705,067.80, 31,057,601.70 and 18,185,643.80

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Solution

The fourth proportional to 20,705,067.80, 31,057,601.70 and 18,185,643.80 is: 27,278,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705,067.80 : 31,057,601.70 = 18,185,643.80 : x
  2. Step 2: Convert to fraction form
    20,705,067.80/31,057,601.70 = 18,185,643.80/x
  3. Step 3: Cross multiply
    20,705,067.80x = 31,057,601.70 × 18,185,643.80
  4. Step 4: Simplify right side
    20,705,067.80x = 564,802,481,798,474.50
  5. Step 5: Solve for x
    x = 564,802,481,798,474.50/20,705,067.80
  6. Step 6: Final answer
    x = 27,278,465.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.