Home / 256,619,087.20-384,928,630.80-213,536,936.80

Finding the Fourth Proportional to 256,619,087.20, 384,928,630.80 and 213,536,936.80

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Solution

The fourth proportional to 256,619,087.20, 384,928,630.80 and 213,536,936.80 is: 320,305,405.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,619,087.20 : 384,928,630.80 = 213,536,936.80 : x
  2. Step 2: Convert to fraction form
    256,619,087.20/384,928,630.80 = 213,536,936.80/x
  3. Step 3: Cross multiply
    256,619,087.20x = 384,928,630.80 × 213,536,936.80
  4. Step 4: Simplify right side
    256,619,087.20x = 82,196,480,707,650,144
  5. Step 5: Solve for x
    x = 82,196,480,707,650,144/256,619,087.20
  6. Step 6: Final answer
    x = 320,305,405.20

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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.