Home / 20,912,102.02-31,380,430.34-8,780,632.59

Finding the Fourth Proportional to 20,912,102.02, 31,380,430.34 and 8,780,632.59

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Solution

The fourth proportional to 20,912,102.02, 31,380,430.34 and 8,780,632.59 is: 13,176,103.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,102.02 : 31,380,430.34 = 8,780,632.59 : x
  2. Step 2: Convert to fraction form
    20,912,102.02/31,380,430.34 = 8,780,632.59/x
  3. Step 3: Cross multiply
    20,912,102.02x = 31,380,430.34 × 8,780,632.59
  4. Step 4: Simplify right side
    20,912,102.02x = 275,540,029,331,628.78
  5. Step 5: Solve for x
    x = 275,540,029,331,628.78/20,912,102.02
  6. Step 6: Final answer
    x = 13,176,103.92

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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.