Home / 12,422,876.50-17,143,121.37-6,916,109.86

Finding the Fourth Proportional to 12,422,876.50, 17,143,121.37 and 6,916,109.86

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Solution

The fourth proportional to 12,422,876.50, 17,143,121.37 and 6,916,109.86 is: 9,543,982.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422,876.50 : 17,143,121.37 = 6,916,109.86 : x
  2. Step 2: Convert to fraction form
    12,422,876.50/17,143,121.37 = 6,916,109.86/x
  3. Step 3: Cross multiply
    12,422,876.50x = 17,143,121.37 × 6,916,109.86
  4. Step 4: Simplify right side
    12,422,876.50x = 118,563,710,738,233.72
  5. Step 5: Solve for x
    x = 118,563,710,738,233.72/12,422,876.50
  6. Step 6: Final answer
    x = 9,543,982.08

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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.