Home / 15,305,581.59-21,121,724.16-8,336,286.42

Finding the Fourth Proportional to 15,305,581.59, 21,121,724.16 and 8,336,286.42

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Solution

The fourth proportional to 15,305,581.59, 21,121,724.16 and 8,336,286.42 is: 11,504,087.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,305,581.59 : 21,121,724.16 = 8,336,286.42 : x
  2. Step 2: Convert to fraction form
    15,305,581.59/21,121,724.16 = 8,336,286.42/x
  3. Step 3: Cross multiply
    15,305,581.59x = 21,121,724.16 × 8,336,286.42
  4. Step 4: Simplify right side
    15,305,581.59x = 176,076,742,281,993.91
  5. Step 5: Solve for x
    x = 176,076,742,281,993.91/15,305,581.59
  6. Step 6: Final answer
    x = 11,504,087.01

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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.