Home / 53,253,820.92-79,883,009.92-20,912,720.48

Finding the Fourth Proportional to 53,253,820.92, 79,883,009.92 and 20,912,720.48

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Solution

The fourth proportional to 53,253,820.92, 79,883,009.92 and 20,912,720.48 is: 31,369,975.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,253,820.92 : 79,883,009.92 = 20,912,720.48 : x
  2. Step 2: Convert to fraction form
    53,253,820.92/79,883,009.92 = 20,912,720.48/x
  3. Step 3: Cross multiply
    53,253,820.92x = 79,883,009.92 × 20,912,720.48
  4. Step 4: Simplify right side
    53,253,820.92x = 1,670,571,057,558,027.25
  5. Step 5: Solve for x
    x = 1,670,571,057,558,027.25/53,253,820.92
  6. Step 6: Final answer
    x = 31,369,975.50

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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.