Home / 84,248,064.50-126,372,096.75-20,422,656.50

Finding the Fourth Proportional to 84,248,064.50, 126,372,096.75 and 20,422,656.50

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Solution

The fourth proportional to 84,248,064.50, 126,372,096.75 and 20,422,656.50 is: 30,633,984.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,064.50 : 126,372,096.75 = 20,422,656.50 : x
  2. Step 2: Convert to fraction form
    84,248,064.50/126,372,096.75 = 20,422,656.50/x
  3. Step 3: Cross multiply
    84,248,064.50x = 126,372,096.75 × 20,422,656.50
  4. Step 4: Simplify right side
    84,248,064.50x = 2,580,853,923,110,016.50
  5. Step 5: Solve for x
    x = 2,580,853,923,110,016.50/84,248,064.50
  6. Step 6: Final answer
    x = 30,633,984.75

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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.