Home / 72,587,207.52-100,170,291.96-39,992,159.52

Finding the Fourth Proportional to 72,587,207.52, 100,170,291.96 and 39,992,159.52

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Solution

The fourth proportional to 72,587,207.52, 100,170,291.96 and 39,992,159.52 is: 55,189,150.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,587,207.52 : 100,170,291.96 = 39,992,159.52 : x
  2. Step 2: Convert to fraction form
    72,587,207.52/100,170,291.96 = 39,992,159.52/x
  3. Step 3: Cross multiply
    72,587,207.52x = 100,170,291.96 × 39,992,159.52
  4. Step 4: Simplify right side
    72,587,207.52x = 4,006,026,295,229,293.50
  5. Step 5: Solve for x
    x = 4,006,026,295,229,293.50/72,587,207.52
  6. Step 6: Final answer
    x = 55,189,150.16

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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.