Home / 120,965,648.80-181,332,351.60-40,145,015.20

Finding the Fourth Proportional to 120,965,648.80, 181,332,351.60 and 40,145,015.20

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Solution

The fourth proportional to 120,965,648.80, 181,332,351.60 and 40,145,015.20 is: 60,178,985.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,965,648.80 : 181,332,351.60 = 40,145,015.20 : x
  2. Step 2: Convert to fraction form
    120,965,648.80/181,332,351.60 = 40,145,015.20/x
  3. Step 3: Cross multiply
    120,965,648.80x = 181,332,351.60 × 40,145,015.20
  4. Step 4: Simplify right side
    120,965,648.80x = 7,279,590,011,233,745
  5. Step 5: Solve for x
    x = 7,279,590,011,233,745/120,965,648.80
  6. Step 6: Final answer
    x = 60,178,985.39

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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.