Home / 18,786,890.98-28,171,454.28-7,277,748.94

Finding the Fourth Proportional to 18,786,890.98, 28,171,454.28 and 7,277,748.94

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Solution

The fourth proportional to 18,786,890.98, 28,171,454.28 and 7,277,748.94 is: 10,913,182.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786,890.98 : 28,171,454.28 = 7,277,748.94 : x
  2. Step 2: Convert to fraction form
    18,786,890.98/28,171,454.28 = 7,277,748.94/x
  3. Step 3: Cross multiply
    18,786,890.98x = 28,171,454.28 × 7,277,748.94
  4. Step 4: Simplify right side
    18,786,890.98x = 205,024,771,524,528.47
  5. Step 5: Solve for x
    x = 205,024,771,524,528.47/18,786,890.98
  6. Step 6: Final answer
    x = 10,913,182.59

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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.