Home / 13,420,453,561.12-18,520,246,321.68-7,479,878,517.28

Finding the Fourth Proportional to 13,420,453,561.12, 18,520,246,321.68 and 7,479,878,517.28

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Solution

The fourth proportional to 13,420,453,561.12, 18,520,246,321.68 and 7,479,878,517.28 is: 10,322,243,727.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420,453,561.12 : 18,520,246,321.68 = 7,479,878,517.28 : x
  2. Step 2: Convert to fraction form
    13,420,453,561.12/18,520,246,321.68 = 7,479,878,517.28/x
  3. Step 3: Cross multiply
    13,420,453,561.12x = 18,520,246,321.68 × 7,479,878,517.28
  4. Step 4: Simplify right side
    13,420,453,561.12x = 138,529,192,596,268,171,264
  5. Step 5: Solve for x
    x = 138,529,192,596,268,171,264/13,420,453,561.12
  6. Step 6: Final answer
    x = 10,322,243,727.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.