Home / 13,188,139.20-19,782,208.80-4,669,336.80

Finding the Fourth Proportional to 13,188,139.20, 19,782,208.80 and 4,669,336.80

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Solution

The fourth proportional to 13,188,139.20, 19,782,208.80 and 4,669,336.80 is: 7,004,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188,139.20 : 19,782,208.80 = 4,669,336.80 : x
  2. Step 2: Convert to fraction form
    13,188,139.20/19,782,208.80 = 4,669,336.80/x
  3. Step 3: Cross multiply
    13,188,139.20x = 19,782,208.80 × 4,669,336.80
  4. Step 4: Simplify right side
    13,188,139.20x = 92,369,795,535,123.84
  5. Step 5: Solve for x
    x = 92,369,795,535,123.84/13,188,139.20
  6. Step 6: Final answer
    x = 7,004,005.20

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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.