Home / 20,641,865.55-28,485,847.68-11,350,020.16

Finding the Fourth Proportional to 20,641,865.55, 28,485,847.68 and 11,350,020.16

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Solution

The fourth proportional to 20,641,865.55, 28,485,847.68 and 11,350,020.16 is: 15,663,068.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,641,865.55 : 28,485,847.68 = 11,350,020.16 : x
  2. Step 2: Convert to fraction form
    20,641,865.55/28,485,847.68 = 11,350,020.16/x
  3. Step 3: Cross multiply
    20,641,865.55x = 28,485,847.68 × 11,350,020.16
  4. Step 4: Simplify right side
    20,641,865.55x = 323,314,945,339,333.62
  5. Step 5: Solve for x
    x = 323,314,945,339,333.62/20,641,865.55
  6. Step 6: Final answer
    x = 15,663,068.08

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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.