Home / 72,567,609.66-100,143,309.96-39,972,561.66

Finding the Fourth Proportional to 72,567,609.66, 100,143,309.96 and 39,972,561.66

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Solution

The fourth proportional to 72,567,609.66, 100,143,309.96 and 39,972,561.66 is: 55,162,139.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,567,609.66 : 100,143,309.96 = 39,972,561.66 : x
  2. Step 2: Convert to fraction form
    72,567,609.66/100,143,309.96 = 39,972,561.66/x
  3. Step 3: Cross multiply
    72,567,609.66x = 100,143,309.96 × 39,972,561.66
  4. Step 4: Simplify right side
    72,567,609.66x = 4,002,984,632,212,591.50
  5. Step 5: Solve for x
    x = 4,002,984,632,212,591.50/72,567,609.66
  6. Step 6: Final answer
    x = 55,162,139.84

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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.