Home / 18,341,279-25,284,288.66-12,817,504.52

Finding the Fourth Proportional to 18,341,279, 25,284,288.66 and 12,817,504.52

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Solution

The fourth proportional to 18,341,279, 25,284,288.66 and 12,817,504.52 is: 17,669,513.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341,279 : 25,284,288.66 = 12,817,504.52 : x
  2. Step 2: Convert to fraction form
    18,341,279/25,284,288.66 = 12,817,504.52/x
  3. Step 3: Cross multiply
    18,341,279x = 25,284,288.66 × 12,817,504.52
  4. Step 4: Simplify right side
    18,341,279x = 324,081,484,184,534.75
  5. Step 5: Solve for x
    x = 324,081,484,184,534.75/18,341,279
  6. Step 6: Final answer
    x = 17,669,513.90

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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.