Home / 21,676,115.44-29,913,901.80-11,886,910.72

Finding the Fourth Proportional to 21,676,115.44, 29,913,901.80 and 11,886,910.72

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Solution

The fourth proportional to 21,676,115.44, 29,913,901.80 and 11,886,910.72 is: 16,404,409.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,676,115.44 : 29,913,901.80 = 11,886,910.72 : x
  2. Step 2: Convert to fraction form
    21,676,115.44/29,913,901.80 = 11,886,910.72/x
  3. Step 3: Cross multiply
    21,676,115.44x = 29,913,901.80 × 11,886,910.72
  4. Step 4: Simplify right side
    21,676,115.44x = 355,583,879,983,447.31
  5. Step 5: Solve for x
    x = 355,583,879,983,447.31/21,676,115.44
  6. Step 6: Final answer
    x = 16,404,409.77

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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.