Home / 20,478,716.51-28,260,627.68-11,059,506.71

Finding the Fourth Proportional to 20,478,716.51, 28,260,627.68 and 11,059,506.71

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Solution

The fourth proportional to 20,478,716.51, 28,260,627.68 and 11,059,506.71 is: 15,262,118.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,478,716.51 : 28,260,627.68 = 11,059,506.71 : x
  2. Step 2: Convert to fraction form
    20,478,716.51/28,260,627.68 = 11,059,506.71/x
  3. Step 3: Cross multiply
    20,478,716.51x = 28,260,627.68 × 11,059,506.71
  4. Step 4: Simplify right side
    20,478,716.51x = 312,548,601,259,171.06
  5. Step 5: Solve for x
    x = 312,548,601,259,171.06/20,478,716.51
  6. Step 6: Final answer
    x = 15,262,118.66

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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.