Home / 72,744,516.15-100,518,747.09-51,800,187.13

Finding the Fourth Proportional to 72,744,516.15, 100,518,747.09 and 51,800,187.13

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Solution

The fourth proportional to 72,744,516.15, 100,518,747.09 and 51,800,187.13 is: 71,577,765.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,744,516.15 : 100,518,747.09 = 51,800,187.13 : x
  2. Step 2: Convert to fraction form
    72,744,516.15/100,518,747.09 = 51,800,187.13/x
  3. Step 3: Cross multiply
    72,744,516.15x = 100,518,747.09 × 51,800,187.13
  4. Step 4: Simplify right side
    72,744,516.15x = 5,206,889,909,335,143
  5. Step 5: Solve for x
    x = 5,206,889,909,335,143/72,744,516.15
  6. Step 6: Final answer
    x = 71,577,765.38

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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.