Home / 120,300,747.66-180,422,228.30-55,542,332.61

Finding the Fourth Proportional to 120,300,747.66, 180,422,228.30 and 55,542,332.61

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Solution

The fourth proportional to 120,300,747.66, 180,422,228.30 and 55,542,332.61 is: 83,300,159.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,300,747.66 : 180,422,228.30 = 55,542,332.61 : x
  2. Step 2: Convert to fraction form
    120,300,747.66/180,422,228.30 = 55,542,332.61/x
  3. Step 3: Cross multiply
    120,300,747.66x = 180,422,228.30 × 55,542,332.61
  4. Step 4: Simplify right side
    120,300,747.66x = 10,021,071,414,198,242
  5. Step 5: Solve for x
    x = 10,021,071,414,198,242/120,300,747.66
  6. Step 6: Final answer
    x = 83,300,159.05

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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.