Home / 12,353,981.70-18,491,650.95-8,815,037.70

Finding the Fourth Proportional to 12,353,981.70, 18,491,650.95 and 8,815,037.70

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Solution

The fourth proportional to 12,353,981.70, 18,491,650.95 and 8,815,037.70 is: 13,194,499.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,353,981.70 : 18,491,650.95 = 8,815,037.70 : x
  2. Step 2: Convert to fraction form
    12,353,981.70/18,491,650.95 = 8,815,037.70/x
  3. Step 3: Cross multiply
    12,353,981.70x = 18,491,650.95 × 8,815,037.70
  4. Step 4: Simplify right side
    12,353,981.70x = 163,004,600,259,490.78
  5. Step 5: Solve for x
    x = 163,004,600,259,490.78/12,353,981.70
  6. Step 6: Final answer
    x = 13,194,499.09

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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.