Home / 20,590,409.40-30,853,682.78-11,933,036.96

Finding the Fourth Proportional to 20,590,409.40, 30,853,682.78 and 11,933,036.96

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Solution

The fourth proportional to 20,590,409.40, 30,853,682.78 and 11,933,036.96 is: 17,881,049.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590,409.40 : 30,853,682.78 = 11,933,036.96 : x
  2. Step 2: Convert to fraction form
    20,590,409.40/30,853,682.78 = 11,933,036.96/x
  3. Step 3: Cross multiply
    20,590,409.40x = 30,853,682.78 × 11,933,036.96
  4. Step 4: Simplify right side
    20,590,409.40x = 368,178,136,992,597.25
  5. Step 5: Solve for x
    x = 368,178,136,992,597.25/20,590,409.40
  6. Step 6: Final answer
    x = 17,881,049.85

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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.