Home / 20,627,354.72-28,464,080.64-11,926,085.60

Finding the Fourth Proportional to 20,627,354.72, 28,464,080.64 and 11,926,085.60

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Solution

The fourth proportional to 20,627,354.72, 28,464,080.64 and 11,926,085.60 is: 16,457,033.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627,354.72 : 28,464,080.64 = 11,926,085.60 : x
  2. Step 2: Convert to fraction form
    20,627,354.72/28,464,080.64 = 11,926,085.60/x
  3. Step 3: Cross multiply
    20,627,354.72x = 28,464,080.64 × 11,926,085.60
  4. Step 4: Simplify right side
    20,627,354.72x = 339,465,062,237,942.75
  5. Step 5: Solve for x
    x = 339,465,062,237,942.75/20,627,354.72
  6. Step 6: Final answer
    x = 16,457,033.24

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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.