Home / 18,786,891.98-28,171,455.78-7,277,749.94

Finding the Fourth Proportional to 18,786,891.98, 28,171,455.78 and 7,277,749.94

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Solution

The fourth proportional to 18,786,891.98, 28,171,455.78 and 7,277,749.94 is: 10,913,184.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786,891.98 : 28,171,455.78 = 7,277,749.94 : x
  2. Step 2: Convert to fraction form
    18,786,891.98/28,171,455.78 = 7,277,749.94/x
  3. Step 3: Cross multiply
    18,786,891.98x = 28,171,455.78 × 7,277,749.94
  4. Step 4: Simplify right side
    18,786,891.98x = 205,024,810,612,607.69
  5. Step 5: Solve for x
    x = 205,024,810,612,607.69/18,786,891.98
  6. Step 6: Final answer
    x = 10,913,184.09

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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.