Home / 13,205,590.20-19,808,385.30-11,379,007.80

Finding the Fourth Proportional to 13,205,590.20, 19,808,385.30 and 11,379,007.80

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Solution

The fourth proportional to 13,205,590.20, 19,808,385.30 and 11,379,007.80 is: 17,068,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205,590.20 : 19,808,385.30 = 11,379,007.80 : x
  2. Step 2: Convert to fraction form
    13,205,590.20/19,808,385.30 = 11,379,007.80/x
  3. Step 3: Cross multiply
    13,205,590.20x = 19,808,385.30 × 11,379,007.80
  4. Step 4: Simplify right side
    13,205,590.20x = 225,399,770,834,105.38
  5. Step 5: Solve for x
    x = 225,399,770,834,105.38/13,205,590.20
  6. Step 6: Final answer
    x = 17,068,511.70

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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.