Home / 15,503,788.14-21,395,018.79-8,628,268.38

Finding the Fourth Proportional to 15,503,788.14, 21,395,018.79 and 8,628,268.38

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Solution

The fourth proportional to 15,503,788.14, 21,395,018.79 and 8,628,268.38 is: 11,906,894.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,503,788.14 : 21,395,018.79 = 8,628,268.38 : x
  2. Step 2: Convert to fraction form
    15,503,788.14/21,395,018.79 = 8,628,268.38/x
  3. Step 3: Cross multiply
    15,503,788.14x = 21,395,018.79 × 8,628,268.38
  4. Step 4: Simplify right side
    15,503,788.14x = 184,601,964,115,262.88
  5. Step 5: Solve for x
    x = 184,601,964,115,262.88/15,503,788.14
  6. Step 6: Final answer
    x = 11,906,894.14

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1.5x scale

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.