Home / 18,980,993.67-28,476,345.65-5,517,821.67

Finding the Fourth Proportional to 18,980,993.67, 28,476,345.65 and 5,517,821.67

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Solution

The fourth proportional to 18,980,993.67, 28,476,345.65 and 5,517,821.67 is: 8,278,143.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,980,993.67 : 28,476,345.65 = 5,517,821.67 : x
  2. Step 2: Convert to fraction form
    18,980,993.67/28,476,345.65 = 5,517,821.67/x
  3. Step 3: Cross multiply
    18,980,993.67x = 28,476,345.65 × 5,517,821.67
  4. Step 4: Simplify right side
    18,980,993.67x = 157,127,397,109,980.22
  5. Step 5: Solve for x
    x = 157,127,397,109,980.22/18,980,993.67
  6. Step 6: Final answer
    x = 8,278,143.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.