Home / 39,958,222.92-55,142,345.88-21,623,508.96

Finding the Fourth Proportional to 39,958,222.92, 55,142,345.88 and 21,623,508.96

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Solution

The fourth proportional to 39,958,222.92, 55,142,345.88 and 21,623,508.96 is: 29,840,441.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,958,222.92 : 55,142,345.88 = 21,623,508.96 : x
  2. Step 2: Convert to fraction form
    39,958,222.92/55,142,345.88 = 21,623,508.96/x
  3. Step 3: Cross multiply
    39,958,222.92x = 55,142,345.88 × 21,623,508.96
  4. Step 4: Simplify right side
    39,958,222.92x = 1,192,371,010,211,599.25
  5. Step 5: Solve for x
    x = 1,192,371,010,211,599.25/39,958,222.92
  6. Step 6: Final answer
    x = 29,840,441.42

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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.