Home / 19,291,951.80-28,900,091.76-11,187,901.62

Finding the Fourth Proportional to 19,291,951.80, 28,900,091.76 and 11,187,901.62

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Solution

The fourth proportional to 19,291,951.80, 28,900,091.76 and 11,187,901.62 is: 16,759,910.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,291,951.80 : 28,900,091.76 = 11,187,901.62 : x
  2. Step 2: Convert to fraction form
    19,291,951.80/28,900,091.76 = 11,187,901.62/x
  3. Step 3: Cross multiply
    19,291,951.80x = 28,900,091.76 × 11,187,901.62
  4. Step 4: Simplify right side
    19,291,951.80x = 323,331,383,419,852.62
  5. Step 5: Solve for x
    x = 323,331,383,419,852.62/19,291,951.80
  6. Step 6: Final answer
    x = 16,759,910.39

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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.