Home / 21,405,889.32-29,540,146.58-11,616,333.60

Finding the Fourth Proportional to 21,405,889.32, 29,540,146.58 and 11,616,333.60

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Solution

The fourth proportional to 21,405,889.32, 29,540,146.58 and 11,616,333.60 is: 16,030,550.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405,889.32 : 29,540,146.58 = 11,616,333.60 : x
  2. Step 2: Convert to fraction form
    21,405,889.32/29,540,146.58 = 11,616,333.60/x
  3. Step 3: Cross multiply
    21,405,889.32x = 29,540,146.58 × 11,616,333.60
  4. Step 4: Simplify right side
    21,405,889.32x = 343,148,197,266,179.06
  5. Step 5: Solve for x
    x = 343,148,197,266,179.06/21,405,889.32
  6. Step 6: Final answer
    x = 16,030,550.85

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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.