Home / 120,300,749.66-180,422,231.29-55,542,334.61

Finding the Fourth Proportional to 120,300,749.66, 180,422,231.29 and 55,542,334.61

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Solution

The fourth proportional to 120,300,749.66, 180,422,231.29 and 55,542,334.61 is: 83,300,162.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,300,749.66 : 180,422,231.29 = 55,542,334.61 : x
  2. Step 2: Convert to fraction form
    120,300,749.66/180,422,231.29 = 55,542,334.61/x
  3. Step 3: Cross multiply
    120,300,749.66x = 180,422,231.29 × 55,542,334.61
  4. Step 4: Simplify right side
    120,300,749.66x = 10,021,071,941,391,992
  5. Step 5: Solve for x
    x = 10,021,071,941,391,992/120,300,749.66
  6. Step 6: Final answer
    x = 83,300,162.05

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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.