Home / 12,887,405.25-19,336,461.15-5,216,472.67

Finding the Fourth Proportional to 12,887,405.25, 19,336,461.15 and 5,216,472.67

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Solution

The fourth proportional to 12,887,405.25, 19,336,461.15 and 5,216,472.67 is: 7,826,875.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887,405.25 : 19,336,461.15 = 5,216,472.67 : x
  2. Step 2: Convert to fraction form
    12,887,405.25/19,336,461.15 = 5,216,472.67/x
  3. Step 3: Cross multiply
    12,887,405.25x = 19,336,461.15 × 5,216,472.67
  4. Step 4: Simplify right side
    12,887,405.25x = 100,868,121,123,491.77
  5. Step 5: Solve for x
    x = 100,868,121,123,491.77/12,887,405.25
  6. Step 6: Final answer
    x = 7,826,875.87

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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.