Home / 13,111,372.80-19,667,059.20-8,009,539.20

Finding the Fourth Proportional to 13,111,372.80, 19,667,059.20 and 8,009,539.20

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Solution

The fourth proportional to 13,111,372.80, 19,667,059.20 and 8,009,539.20 is: 12,014,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,111,372.80 : 19,667,059.20 = 8,009,539.20 : x
  2. Step 2: Convert to fraction form
    13,111,372.80/19,667,059.20 = 8,009,539.20/x
  3. Step 3: Cross multiply
    13,111,372.80x = 19,667,059.20 × 8,009,539.20
  4. Step 4: Simplify right side
    13,111,372.80x = 157,524,081,611,120.62
  5. Step 5: Solve for x
    x = 157,524,081,611,120.62/13,111,372.80
  6. Step 6: Final answer
    x = 12,014,308.80

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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.