Home / 20,772,103.14-28,664,619.38-11,480,021.28

Finding the Fourth Proportional to 20,772,103.14, 28,664,619.38 and 11,480,021.28

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Solution

The fourth proportional to 20,772,103.14, 28,664,619.38 and 11,480,021.28 is: 15,841,941.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772,103.14 : 28,664,619.38 = 11,480,021.28 : x
  2. Step 2: Convert to fraction form
    20,772,103.14/28,664,619.38 = 11,480,021.28/x
  3. Step 3: Cross multiply
    20,772,103.14x = 28,664,619.38 × 11,480,021.28
  4. Step 4: Simplify right side
    20,772,103.14x = 329,070,440,465,500.38
  5. Step 5: Solve for x
    x = 329,070,440,465,500.38/20,772,103.14
  6. Step 6: Final answer
    x = 15,841,941.39

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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.