Home / 6,420,540.52-9,634,121.90-3,009,173.68

Finding the Fourth Proportional to 6,420,540.52, 9,634,121.90 and 3,009,173.68

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Solution

The fourth proportional to 6,420,540.52, 9,634,121.90 and 3,009,173.68 is: 4,515,312.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,540.52 : 9,634,121.90 = 3,009,173.68 : x
  2. Step 2: Convert to fraction form
    6,420,540.52/9,634,121.90 = 3,009,173.68/x
  3. Step 3: Cross multiply
    6,420,540.52x = 9,634,121.90 × 3,009,173.68
  4. Step 4: Simplify right side
    6,420,540.52x = 28,990,746,051,391.59
  5. Step 5: Solve for x
    x = 28,990,746,051,391.59/6,420,540.52
  6. Step 6: Final answer
    x = 4,515,312.37

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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.