Home / 45,491,143.70-68,236,715.55-28,272,455.30

Finding the Fourth Proportional to 45,491,143.70, 68,236,715.55 and 28,272,455.30

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Solution

The fourth proportional to 45,491,143.70, 68,236,715.55 and 28,272,455.30 is: 42,408,682.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,491,143.70 : 68,236,715.55 = 28,272,455.30 : x
  2. Step 2: Convert to fraction form
    45,491,143.70/68,236,715.55 = 28,272,455.30/x
  3. Step 3: Cross multiply
    45,491,143.70x = 68,236,715.55 × 28,272,455.30
  4. Step 4: Simplify right side
    45,491,143.70x = 1,929,219,490,206,190
  5. Step 5: Solve for x
    x = 1,929,219,490,206,190/45,491,143.70
  6. Step 6: Final answer
    x = 42,408,682.95

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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.