Home / 20,500,629.66-28,291,459.41-11,333,862.90

Finding the Fourth Proportional to 20,500,629.66, 28,291,459.41 and 11,333,862.90

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Solution

The fourth proportional to 20,500,629.66, 28,291,459.41 and 11,333,862.90 is: 15,641,057.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500,629.66 : 28,291,459.41 = 11,333,862.90 : x
  2. Step 2: Convert to fraction form
    20,500,629.66/28,291,459.41 = 11,333,862.90/x
  3. Step 3: Cross multiply
    20,500,629.66x = 28,291,459.41 × 11,333,862.90
  4. Step 4: Simplify right side
    20,500,629.66x = 320,651,522,193,854.88
  5. Step 5: Solve for x
    x = 320,651,522,193,854.88/20,500,629.66
  6. Step 6: Final answer
    x = 15,641,057.25

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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.