Home / 18,689,195.80-28,033,793.70-5,042,315.80

Finding the Fourth Proportional to 18,689,195.80, 28,033,793.70 and 5,042,315.80

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Solution

The fourth proportional to 18,689,195.80, 28,033,793.70 and 5,042,315.80 is: 7,563,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,195.80 : 28,033,793.70 = 5,042,315.80 : x
  2. Step 2: Convert to fraction form
    18,689,195.80/28,033,793.70 = 5,042,315.80/x
  3. Step 3: Cross multiply
    18,689,195.80x = 28,033,793.70 × 5,042,315.80
  4. Step 4: Simplify right side
    18,689,195.80x = 141,355,240,907,450.44
  5. Step 5: Solve for x
    x = 141,355,240,907,450.44/18,689,195.80
  6. Step 6: Final answer
    x = 7,563,473.70

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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.