Home / 20,316,120.96-28,034,866.74-11,149,354.20

Finding the Fourth Proportional to 20,316,120.96, 28,034,866.74 and 11,149,354.20

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Solution

The fourth proportional to 20,316,120.96, 28,034,866.74 and 11,149,354.20 is: 15,385,351.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316,120.96 : 28,034,866.74 = 11,149,354.20 : x
  2. Step 2: Convert to fraction form
    20,316,120.96/28,034,866.74 = 11,149,354.20/x
  3. Step 3: Cross multiply
    20,316,120.96x = 28,034,866.74 × 11,149,354.20
  4. Step 4: Simplify right side
    20,316,120.96x = 312,570,659,234,059.25
  5. Step 5: Solve for x
    x = 312,570,659,234,059.25/20,316,120.96
  6. Step 6: Final answer
    x = 15,385,351.36

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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.