Home / 5,415,329.20-8,122,993.80-5,378,004.40

Finding the Fourth Proportional to 5,415,329.20, 8,122,993.80 and 5,378,004.40

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Solution

The fourth proportional to 5,415,329.20, 8,122,993.80 and 5,378,004.40 is: 8,067,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415,329.20 : 8,122,993.80 = 5,378,004.40 : x
  2. Step 2: Convert to fraction form
    5,415,329.20/8,122,993.80 = 5,378,004.40/x
  3. Step 3: Cross multiply
    5,415,329.20x = 8,122,993.80 × 5,378,004.40
  4. Step 4: Simplify right side
    5,415,329.20x = 43,685,496,397,572.72
  5. Step 5: Solve for x
    x = 43,685,496,397,572.72/5,415,329.20
  6. Step 6: Final answer
    x = 8,067,006.60

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1.5x scale

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.