Home / 18,870,503.26-26,035,030.38-15,379,839.86

Finding the Fourth Proportional to 18,870,503.26, 26,035,030.38 and 15,379,839.86

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Solution

The fourth proportional to 18,870,503.26, 26,035,030.38 and 15,379,839.86 is: 21,219,073.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870,503.26 : 26,035,030.38 = 15,379,839.86 : x
  2. Step 2: Convert to fraction form
    18,870,503.26/26,035,030.38 = 15,379,839.86/x
  3. Step 3: Cross multiply
    18,870,503.26x = 26,035,030.38 × 15,379,839.86
  4. Step 4: Simplify right side
    18,870,503.26x = 400,414,597,994,634.94
  5. Step 5: Solve for x
    x = 400,414,597,994,634.94/18,870,503.26
  6. Step 6: Final answer
    x = 21,219,073.62

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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.