Home / 87,111,309.54-120,238,992.69-56,940,189.27

Finding the Fourth Proportional to 87,111,309.54, 120,238,992.69 and 56,940,189.27

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Solution

The fourth proportional to 87,111,309.54, 120,238,992.69 and 56,940,189.27 is: 78,594,054.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,111,309.54 : 120,238,992.69 = 56,940,189.27 : x
  2. Step 2: Convert to fraction form
    87,111,309.54/120,238,992.69 = 56,940,189.27/x
  3. Step 3: Cross multiply
    87,111,309.54x = 120,238,992.69 × 56,940,189.27
  4. Step 4: Simplify right side
    87,111,309.54x = 6,846,431,001,402,747
  5. Step 5: Solve for x
    x = 6,846,431,001,402,747/87,111,309.54
  6. Step 6: Final answer
    x = 78,594,054.41

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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.