Home / 12,161,867.91-16,783,118.37-6,655,220.61

Finding the Fourth Proportional to 12,161,867.91, 16,783,118.37 and 6,655,220.61

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Solution

The fourth proportional to 12,161,867.91, 16,783,118.37 and 6,655,220.61 is: 9,184,062.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161,867.91 : 16,783,118.37 = 6,655,220.61 : x
  2. Step 2: Convert to fraction form
    12,161,867.91/16,783,118.37 = 6,655,220.61/x
  3. Step 3: Cross multiply
    12,161,867.91x = 16,783,118.37 × 6,655,220.61
  4. Step 4: Simplify right side
    12,161,867.91x = 111,695,355,276,093.62
  5. Step 5: Solve for x
    x = 111,695,355,276,093.62/12,161,867.91
  6. Step 6: Final answer
    x = 9,184,062.52

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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.