Home / 20,516,359.80-28,310,109.90-11,817,361.56

Finding the Fourth Proportional to 20,516,359.80, 28,310,109.90 and 11,817,361.56

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Solution

The fourth proportional to 20,516,359.80, 28,310,109.90 and 11,817,361.56 is: 16,306,538.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516,359.80 : 28,310,109.90 = 11,817,361.56 : x
  2. Step 2: Convert to fraction form
    20,516,359.80/28,310,109.90 = 11,817,361.56/x
  3. Step 3: Cross multiply
    20,516,359.80x = 28,310,109.90 × 11,817,361.56
  4. Step 4: Simplify right side
    20,516,359.80x = 334,550,804,491,635.44
  5. Step 5: Solve for x
    x = 334,550,804,491,635.44/20,516,359.80
  6. Step 6: Final answer
    x = 16,306,538.18

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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.