Home / 20,852,729.80-28,776,489.24-11,685,551.56

Finding the Fourth Proportional to 20,852,729.80, 28,776,489.24 and 11,685,551.56

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Solution

The fourth proportional to 20,852,729.80, 28,776,489.24 and 11,685,551.56 is: 16,125,905.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,852,729.80 : 28,776,489.24 = 11,685,551.56 : x
  2. Step 2: Convert to fraction form
    20,852,729.80/28,776,489.24 = 11,685,551.56/x
  3. Step 3: Cross multiply
    20,852,729.80x = 28,776,489.24 × 11,685,551.56
  4. Step 4: Simplify right side
    20,852,729.80x = 336,269,148,729,805.19
  5. Step 5: Solve for x
    x = 336,269,148,729,805.19/20,852,729.80
  6. Step 6: Final answer
    x = 16,125,905.43

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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.