Home / 139,927,276.80-209,979,388.80-82,419,436.80

Finding the Fourth Proportional to 139,927,276.80, 209,979,388.80 and 82,419,436.80

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Solution

The fourth proportional to 139,927,276.80, 209,979,388.80 and 82,419,436.80 is: 123,681,267.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,927,276.80 : 209,979,388.80 = 82,419,436.80 : x
  2. Step 2: Convert to fraction form
    139,927,276.80/209,979,388.80 = 82,419,436.80/x
  3. Step 3: Cross multiply
    139,927,276.80x = 209,979,388.80 × 82,419,436.80
  4. Step 4: Simplify right side
    139,927,276.80x = 17,306,382,964,504,228
  5. Step 5: Solve for x
    x = 17,306,382,964,504,228/139,927,276.80
  6. Step 6: Final answer
    x = 123,681,267.59

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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.