Home / 80,643,438,563.20-120,965,157,844.80-55,828,119,932.80

Finding the Fourth Proportional to 80,643,438,563.20, 120,965,157,844.80 and 55,828,119,932.80

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Solution

The fourth proportional to 80,643,438,563.20, 120,965,157,844.80 and 55,828,119,932.80 is: 83,742,179,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,643,438,563.20 : 120,965,157,844.80 = 55,828,119,932.80 : x
  2. Step 2: Convert to fraction form
    80,643,438,563.20/120,965,157,844.80 = 55,828,119,932.80/x
  3. Step 3: Cross multiply
    80,643,438,563.20x = 120,965,157,844.80 × 55,828,119,932.80
  4. Step 4: Simplify right side
    80,643,438,563.20x = 6,753,257,339,849,577,332,736
  5. Step 5: Solve for x
    x = 6,753,257,339,849,577,332,736/80,643,438,563.20
  6. Step 6: Final answer
    x = 83,742,179,899.20

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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.