Home / 55,135,619.20-82,703,428.80-54,285,313.60

Finding the Fourth Proportional to 55,135,619.20, 82,703,428.80 and 54,285,313.60

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Solution

The fourth proportional to 55,135,619.20, 82,703,428.80 and 54,285,313.60 is: 81,427,970.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,135,619.20 : 82,703,428.80 = 54,285,313.60 : x
  2. Step 2: Convert to fraction form
    55,135,619.20/82,703,428.80 = 54,285,313.60/x
  3. Step 3: Cross multiply
    55,135,619.20x = 82,703,428.80 × 54,285,313.60
  4. Step 4: Simplify right side
    55,135,619.20x = 4,489,581,568,203,271.50
  5. Step 5: Solve for x
    x = 4,489,581,568,203,271.50/55,135,619.20
  6. Step 6: Final answer
    x = 81,427,970.40

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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.