Home / 21,978,900.92-30,332,744.64-12,192,496.92

Finding the Fourth Proportional to 21,978,900.92, 30,332,744.64 and 12,192,496.92

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Solution

The fourth proportional to 21,978,900.92, 30,332,744.64 and 12,192,496.92 is: 16,826,678.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,978,900.92 : 30,332,744.64 = 12,192,496.92 : x
  2. Step 2: Convert to fraction form
    21,978,900.92/30,332,744.64 = 12,192,496.92/x
  3. Step 3: Cross multiply
    21,978,900.92x = 30,332,744.64 × 12,192,496.92
  4. Step 4: Simplify right side
    21,978,900.92x = 369,831,895,598,346.50
  5. Step 5: Solve for x
    x = 369,831,895,598,346.50/21,978,900.92
  6. Step 6: Final answer
    x = 16,826,678.32

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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.