Home / 8,721,811.20-13,064,054.40-7,776,249.60

Finding the Fourth Proportional to 8,721,811.20, 13,064,054.40 and 7,776,249.60

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Solution

The fourth proportional to 8,721,811.20, 13,064,054.40 and 7,776,249.60 is: 11,647,735.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721,811.20 : 13,064,054.40 = 7,776,249.60 : x
  2. Step 2: Convert to fraction form
    8,721,811.20/13,064,054.40 = 7,776,249.60/x
  3. Step 3: Cross multiply
    8,721,811.20x = 13,064,054.40 × 7,776,249.60
  4. Step 4: Simplify right side
    8,721,811.20x = 101,589,347,802,378.23
  5. Step 5: Solve for x
    x = 101,589,347,802,378.23/8,721,811.20
  6. Step 6: Final answer
    x = 11,647,735.26

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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.