Home / 11,809,978.80-17,714,968.20-8,954,631.60

Finding the Fourth Proportional to 11,809,978.80, 17,714,968.20 and 8,954,631.60

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Solution

The fourth proportional to 11,809,978.80, 17,714,968.20 and 8,954,631.60 is: 13,431,947.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809,978.80 : 17,714,968.20 = 8,954,631.60 : x
  2. Step 2: Convert to fraction form
    11,809,978.80/17,714,968.20 = 8,954,631.60/x
  3. Step 3: Cross multiply
    11,809,978.80x = 17,714,968.20 × 8,954,631.60
  4. Step 4: Simplify right side
    11,809,978.80x = 158,631,014,036,715.09
  5. Step 5: Solve for x
    x = 158,631,014,036,715.09/11,809,978.80
  6. Step 6: Final answer
    x = 13,431,947.40

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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.