Home / 15,503,788.89-21,395,019.83-8,628,269.13

Finding the Fourth Proportional to 15,503,788.89, 21,395,019.83 and 8,628,269.13

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Solution

The fourth proportional to 15,503,788.89, 21,395,019.83 and 8,628,269.13 is: 11,906,895.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,503,788.89 : 21,395,019.83 = 8,628,269.13 : x
  2. Step 2: Convert to fraction form
    15,503,788.89/21,395,019.83 = 8,628,269.13/x
  3. Step 3: Cross multiply
    15,503,788.89x = 21,395,019.83 × 8,628,269.13
  4. Step 4: Simplify right side
    15,503,788.89x = 184,601,989,091,785.50
  5. Step 5: Solve for x
    x = 184,601,989,091,785.50/15,503,788.89
  6. Step 6: Final answer
    x = 11,906,895.17

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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.