Home / 5,215,478.80-7,823,218.20-3,621,155.80

Finding the Fourth Proportional to 5,215,478.80, 7,823,218.20 and 3,621,155.80

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Solution

The fourth proportional to 5,215,478.80, 7,823,218.20 and 3,621,155.80 is: 5,431,733.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215,478.80 : 7,823,218.20 = 3,621,155.80 : x
  2. Step 2: Convert to fraction form
    5,215,478.80/7,823,218.20 = 3,621,155.80/x
  3. Step 3: Cross multiply
    5,215,478.80x = 7,823,218.20 × 3,621,155.80
  4. Step 4: Simplify right side
    5,215,478.80x = 28,329,091,959,595.56
  5. Step 5: Solve for x
    x = 28,329,091,959,595.56/5,215,478.80
  6. Step 6: Final answer
    x = 5,431,733.70

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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.