Home / 208,589,910.80-312,884,866.20-122,369,622.80

Finding the Fourth Proportional to 208,589,910.80, 312,884,866.20 and 122,369,622.80

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Solution

The fourth proportional to 208,589,910.80, 312,884,866.20 and 122,369,622.80 is: 183,554,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,589,910.80 : 312,884,866.20 = 122,369,622.80 : x
  2. Step 2: Convert to fraction form
    208,589,910.80/312,884,866.20 = 122,369,622.80/x
  3. Step 3: Cross multiply
    208,589,910.80x = 312,884,866.20 × 122,369,622.80
  4. Step 4: Simplify right side
    208,589,910.80x = 38,287,603,056,722,464
  5. Step 5: Solve for x
    x = 38,287,603,056,722,464/208,589,910.80
  6. Step 6: Final answer
    x = 183,554,434.20

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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.