Home / 72,744,519.29-100,518,751.42-51,800,190.26

Finding the Fourth Proportional to 72,744,519.29, 100,518,751.42 and 51,800,190.26

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Solution

The fourth proportional to 72,744,519.29, 100,518,751.42 and 51,800,190.26 is: 71,577,769.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,744,519.29 : 100,518,751.42 = 51,800,190.26 : x
  2. Step 2: Convert to fraction form
    72,744,519.29/100,518,751.42 = 51,800,190.26/x
  3. Step 3: Cross multiply
    72,744,519.29x = 100,518,751.42 × 51,800,190.26
  4. Step 4: Simplify right side
    72,744,519.29x = 5,206,890,447,621,551
  5. Step 5: Solve for x
    x = 5,206,890,447,621,551/72,744,519.29
  6. Step 6: Final answer
    x = 71,577,769.69

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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.