Home / 120,830,320.80-181,245,481.20-101,934,640.80

Finding the Fourth Proportional to 120,830,320.80, 181,245,481.20 and 101,934,640.80

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Solution

The fourth proportional to 120,830,320.80, 181,245,481.20 and 101,934,640.80 is: 152,901,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,830,320.80 : 181,245,481.20 = 101,934,640.80 : x
  2. Step 2: Convert to fraction form
    120,830,320.80/181,245,481.20 = 101,934,640.80/x
  3. Step 3: Cross multiply
    120,830,320.80x = 181,245,481.20 × 101,934,640.80
  4. Step 4: Simplify right side
    120,830,320.80x = 18,475,193,022,745,152
  5. Step 5: Solve for x
    x = 18,475,193,022,745,152/120,830,320.80
  6. Step 6: Final answer
    x = 152,901,961.20

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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.