Home / 8,121,976.30-11,213,423.49-5,226,399.24

Finding the Fourth Proportional to 8,121,976.30, 11,213,423.49 and 5,226,399.24

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Solution

The fourth proportional to 8,121,976.30, 11,213,423.49 and 5,226,399.24 is: 7,215,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121,976.30 : 11,213,423.49 = 5,226,399.24 : x
  2. Step 2: Convert to fraction form
    8,121,976.30/11,213,423.49 = 5,226,399.24/x
  3. Step 3: Cross multiply
    8,121,976.30x = 11,213,423.49 × 5,226,399.24
  4. Step 4: Simplify right side
    8,121,976.30x = 58,605,828,005,934.15
  5. Step 5: Solve for x
    x = 58,605,828,005,934.15/8,121,976.30
  6. Step 6: Final answer
    x = 7,215,710.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.