Home / 18,689,228.80-28,033,843.20-5,042,348.80

Finding the Fourth Proportional to 18,689,228.80, 28,033,843.20 and 5,042,348.80

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Solution

The fourth proportional to 18,689,228.80, 28,033,843.20 and 5,042,348.80 is: 7,563,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,228.80 : 28,033,843.20 = 5,042,348.80 : x
  2. Step 2: Convert to fraction form
    18,689,228.80/28,033,843.20 = 5,042,348.80/x
  3. Step 3: Cross multiply
    18,689,228.80x = 28,033,843.20 × 5,042,348.80
  4. Step 4: Simplify right side
    18,689,228.80x = 141,356,415,618,908.16
  5. Step 5: Solve for x
    x = 141,356,415,618,908.16/18,689,228.80
  6. Step 6: Final answer
    x = 7,563,523.20

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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.