Home / 20,641,778.12-28,483,903.86-11,348,849

Finding the Fourth Proportional to 20,641,778.12, 28,483,903.86 and 11,348,849

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Solution

The fourth proportional to 20,641,778.12, 28,483,903.86 and 11,348,849 is: 15,660,449.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,641,778.12 : 28,483,903.86 = 11,348,849 : x
  2. Step 2: Convert to fraction form
    20,641,778.12/28,483,903.86 = 11,348,849/x
  3. Step 3: Cross multiply
    20,641,778.12x = 28,483,903.86 × 11,348,849
  4. Step 4: Simplify right side
    20,641,778.12x = 323,259,523,837,657.12
  5. Step 5: Solve for x
    x = 323,259,523,837,657.12/20,641,778.12
  6. Step 6: Final answer
    x = 15,660,449.50

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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.