Home / 7,530,479.20-11,288,720.40-5,255,999.20

Finding the Fourth Proportional to 7,530,479.20, 11,288,720.40 and 5,255,999.20

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Solution

The fourth proportional to 7,530,479.20, 11,288,720.40 and 5,255,999.20 is: 7,879,114.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,530,479.20 : 11,288,720.40 = 5,255,999.20 : x
  2. Step 2: Convert to fraction form
    7,530,479.20/11,288,720.40 = 5,255,999.20/x
  3. Step 3: Cross multiply
    7,530,479.20x = 11,288,720.40 × 5,255,999.20
  4. Step 4: Simplify right side
    7,530,479.20x = 59,333,505,391,423.69
  5. Step 5: Solve for x
    x = 59,333,505,391,423.69/7,530,479.20
  6. Step 6: Final answer
    x = 7,879,114.17

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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.