Home / 72,744,500.31-100,518,725.20-51,800,171.29

Finding the Fourth Proportional to 72,744,500.31, 100,518,725.20 and 51,800,171.29

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Solution

The fourth proportional to 72,744,500.31, 100,518,725.20 and 51,800,171.29 is: 71,577,743.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,744,500.31 : 100,518,725.20 = 51,800,171.29 : x
  2. Step 2: Convert to fraction form
    72,744,500.31/100,518,725.20 = 51,800,171.29/x
  3. Step 3: Cross multiply
    72,744,500.31x = 100,518,725.20 × 51,800,171.29
  4. Step 4: Simplify right side
    72,744,500.31x = 5,206,887,183,212,440
  5. Step 5: Solve for x
    x = 5,206,887,183,212,440/72,744,500.31
  6. Step 6: Final answer
    x = 71,577,743.49

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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.