Home / 7,377,879.20-11,066,818.80-5,213,040.80

Finding the Fourth Proportional to 7,377,879.20, 11,066,818.80 and 5,213,040.80

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Solution

The fourth proportional to 7,377,879.20, 11,066,818.80 and 5,213,040.80 is: 7,819,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,377,879.20 : 11,066,818.80 = 5,213,040.80 : x
  2. Step 2: Convert to fraction form
    7,377,879.20/11,066,818.80 = 5,213,040.80/x
  3. Step 3: Cross multiply
    7,377,879.20x = 11,066,818.80 × 5,213,040.80
  4. Step 4: Simplify right side
    7,377,879.20x = 57,691,777,930,607.04
  5. Step 5: Solve for x
    x = 57,691,777,930,607.04/7,377,879.20
  6. Step 6: Final answer
    x = 7,819,561.20

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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.