Home / 18,689,002.40-28,012,767.60-7,325,674.40

Finding the Fourth Proportional to 18,689,002.40, 28,012,767.60 and 7,325,674.40

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Solution

The fourth proportional to 18,689,002.40, 28,012,767.60 and 7,325,674.40 is: 10,980,383.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,002.40 : 28,012,767.60 = 7,325,674.40 : x
  2. Step 2: Convert to fraction form
    18,689,002.40/28,012,767.60 = 7,325,674.40/x
  3. Step 3: Cross multiply
    18,689,002.40x = 28,012,767.60 × 7,325,674.40
  4. Step 4: Simplify right side
    18,689,002.40x = 205,212,414,480,469.47
  5. Step 5: Solve for x
    x = 205,212,414,480,469.47/18,689,002.40
  6. Step 6: Final answer
    x = 10,980,383.55

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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.