Home / 20,817,576.80-28,727,638.96-11,525,561.04

Finding the Fourth Proportional to 20,817,576.80, 28,727,638.96 and 11,525,561.04

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Solution

The fourth proportional to 20,817,576.80, 28,727,638.96 and 11,525,561.04 is: 15,904,932.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,817,576.80 : 28,727,638.96 = 11,525,561.04 : x
  2. Step 2: Convert to fraction form
    20,817,576.80/28,727,638.96 = 11,525,561.04/x
  3. Step 3: Cross multiply
    20,817,576.80x = 28,727,638.96 × 11,525,561.04
  4. Step 4: Simplify right side
    20,817,576.80x = 331,102,156,368,562.12
  5. Step 5: Solve for x
    x = 331,102,156,368,562.12/20,817,576.80
  6. Step 6: Final answer
    x = 15,904,932.62

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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.