Home / 18,750,786.35-28,127,277.88-7,236,313.97

Finding the Fourth Proportional to 18,750,786.35, 28,127,277.88 and 7,236,313.97

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Solution

The fourth proportional to 18,750,786.35, 28,127,277.88 and 7,236,313.97 is: 10,854,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750,786.35 : 28,127,277.88 = 7,236,313.97 : x
  2. Step 2: Convert to fraction form
    18,750,786.35/28,127,277.88 = 7,236,313.97/x
  3. Step 3: Cross multiply
    18,750,786.35x = 28,127,277.88 × 7,236,313.97
  4. Step 4: Simplify right side
    18,750,786.35x = 203,537,813,702,388.81
  5. Step 5: Solve for x
    x = 203,537,813,702,388.81/18,750,786.35
  6. Step 6: Final answer
    x = 10,854,894.83

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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.