Home / 15,153,684.92-20,917,068.78-12,061,879.64

Finding the Fourth Proportional to 15,153,684.92, 20,917,068.78 and 12,061,879.64

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Solution

The fourth proportional to 15,153,684.92, 20,917,068.78 and 12,061,879.64 is: 16,649,360.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,153,684.92 : 20,917,068.78 = 12,061,879.64 : x
  2. Step 2: Convert to fraction form
    15,153,684.92/20,917,068.78 = 12,061,879.64/x
  3. Step 3: Cross multiply
    15,153,684.92x = 20,917,068.78 × 12,061,879.64
  4. Step 4: Simplify right side
    15,153,684.92x = 252,299,166,045,961.66
  5. Step 5: Solve for x
    x = 252,299,166,045,961.66/15,153,684.92
  6. Step 6: Final answer
    x = 16,649,360.69

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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.