Home / 8,721,812.20-13,064,055.90-7,776,250.60

Finding the Fourth Proportional to 8,721,812.20, 13,064,055.90 and 7,776,250.60

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Solution

The fourth proportional to 8,721,812.20, 13,064,055.90 and 7,776,250.60 is: 11,647,736.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721,812.20 : 13,064,055.90 = 7,776,250.60 : x
  2. Step 2: Convert to fraction form
    8,721,812.20/13,064,055.90 = 7,776,250.60/x
  3. Step 3: Cross multiply
    8,721,812.20x = 13,064,055.90 × 7,776,250.60
  4. Step 4: Simplify right side
    8,721,812.20x = 101,589,372,530,808.53
  5. Step 5: Solve for x
    x = 101,589,372,530,808.53/8,721,812.20
  6. Step 6: Final answer
    x = 11,647,736.75

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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.