Home / 18,907,887.27-26,104,951.86-15,431,530.50

Finding the Fourth Proportional to 18,907,887.27, 26,104,951.86 and 15,431,530.50

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Solution

The fourth proportional to 18,907,887.27, 26,104,951.86 and 15,431,530.50 is: 21,305,360.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907,887.27 : 26,104,951.86 = 15,431,530.50 : x
  2. Step 2: Convert to fraction form
    18,907,887.27/26,104,951.86 = 15,431,530.50/x
  3. Step 3: Cross multiply
    18,907,887.27x = 26,104,951.86 × 15,431,530.50
  4. Step 4: Simplify right side
    18,907,887.27x = 402,839,360,828,621.75
  5. Step 5: Solve for x
    x = 402,839,360,828,621.75/18,907,887.27
  6. Step 6: Final answer
    x = 21,305,360.83

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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.