Home / 69,679,725.91-104,512,835.12-21,158,006.22

Finding the Fourth Proportional to 69,679,725.91, 104,512,835.12 and 21,158,006.22

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Solution

The fourth proportional to 69,679,725.91, 104,512,835.12 and 21,158,006.22 is: 31,734,958.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,679,725.91 : 104,512,835.12 = 21,158,006.22 : x
  2. Step 2: Convert to fraction form
    69,679,725.91/104,512,835.12 = 21,158,006.22/x
  3. Step 3: Cross multiply
    69,679,725.91x = 104,512,835.12 × 21,158,006.22
  4. Step 4: Simplify right side
    69,679,725.91x = 2,211,283,215,433,004.25
  5. Step 5: Solve for x
    x = 2,211,283,215,433,004.25/69,679,725.91
  6. Step 6: Final answer
    x = 31,734,958.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.