Home / 20,619,031.46-30,928,142.70-8,322,667.70

Finding the Fourth Proportional to 20,619,031.46, 30,928,142.70 and 8,322,667.70

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Solution

The fourth proportional to 20,619,031.46, 30,928,142.70 and 8,322,667.70 is: 12,483,838.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,619,031.46 : 30,928,142.70 = 8,322,667.70 : x
  2. Step 2: Convert to fraction form
    20,619,031.46/30,928,142.70 = 8,322,667.70/x
  3. Step 3: Cross multiply
    20,619,031.46x = 30,928,142.70 × 8,322,667.70
  4. Step 4: Simplify right side
    20,619,031.46x = 257,404,654,115,640.09
  5. Step 5: Solve for x
    x = 257,404,654,115,640.09/20,619,031.46
  6. Step 6: Final answer
    x = 12,483,838.28

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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.