Home / 72,923,108.40-100,633,640.76-40,327,360.56

Finding the Fourth Proportional to 72,923,108.40, 100,633,640.76 and 40,327,360.56

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Solution

The fourth proportional to 72,923,108.40, 100,633,640.76 and 40,327,360.56 is: 55,651,619.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,923,108.40 : 100,633,640.76 = 40,327,360.56 : x
  2. Step 2: Convert to fraction form
    72,923,108.40/100,633,640.76 = 40,327,360.56/x
  3. Step 3: Cross multiply
    72,923,108.40x = 100,633,640.76 × 40,327,360.56
  4. Step 4: Simplify right side
    72,923,108.40x = 4,058,289,115,394,033
  5. Step 5: Solve for x
    x = 4,058,289,115,394,033/72,923,108.40
  6. Step 6: Final answer
    x = 55,651,619.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.