Home / 7,776,458.20-11,658,855.30-3,992,656.60

Finding the Fourth Proportional to 7,776,458.20, 11,658,855.30 and 3,992,656.60

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Solution

The fourth proportional to 7,776,458.20, 11,658,855.30 and 3,992,656.60 is: 5,985,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776,458.20 : 11,658,855.30 = 3,992,656.60 : x
  2. Step 2: Convert to fraction form
    7,776,458.20/11,658,855.30 = 3,992,656.60/x
  3. Step 3: Cross multiply
    7,776,458.20x = 11,658,855.30 × 3,992,656.60
  4. Step 4: Simplify right side
    7,776,458.20x = 46,549,805,561,989.98
  5. Step 5: Solve for x
    x = 46,549,805,561,989.98/7,776,458.20
  6. Step 6: Final answer
    x = 5,985,990.58

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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.