Home / 18,692,920.80-28,042,005.60-5,912,092.80

Finding the Fourth Proportional to 18,692,920.80, 28,042,005.60 and 5,912,092.80

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Solution

The fourth proportional to 18,692,920.80, 28,042,005.60 and 5,912,092.80 is: 8,868,969.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692,920.80 : 28,042,005.60 = 5,912,092.80 : x
  2. Step 2: Convert to fraction form
    18,692,920.80/28,042,005.60 = 5,912,092.80/x
  3. Step 3: Cross multiply
    18,692,920.80x = 28,042,005.60 × 5,912,092.80
  4. Step 4: Simplify right side
    18,692,920.80x = 165,786,939,405,319.69
  5. Step 5: Solve for x
    x = 165,786,939,405,319.69/18,692,920.80
  6. Step 6: Final answer
    x = 8,868,969.23

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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.