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Finding the Fourth Proportional to 274,886,809.80, 412,628,988.04 and 111,237,235.08

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Solution

The fourth proportional to 274,886,809.80, 412,628,988.04 and 111,237,235.08 is: 166,976,755.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,886,809.80 : 412,628,988.04 = 111,237,235.08 : x
  2. Step 2: Convert to fraction form
    274,886,809.80/412,628,988.04 = 111,237,235.08/x
  3. Step 3: Cross multiply
    274,886,809.80x = 412,628,988.04 × 111,237,235.08
  4. Step 4: Simplify right side
    274,886,809.80x = 45,899,707,743,427,992
  5. Step 5: Solve for x
    x = 45,899,707,743,427,992/274,886,809.80
  6. Step 6: Final answer
    x = 166,976,755.91

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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.