Home / 256,276,359.20-384,456,425.52-83,703,072.80

Finding the Fourth Proportional to 256,276,359.20, 384,456,425.52 and 83,703,072.80

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Solution

The fourth proportional to 256,276,359.20, 384,456,425.52 and 83,703,072.80 is: 125,568,289.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,276,359.20 : 384,456,425.52 = 83,703,072.80 : x
  2. Step 2: Convert to fraction form
    256,276,359.20/384,456,425.52 = 83,703,072.80/x
  3. Step 3: Cross multiply
    256,276,359.20x = 384,456,425.52 × 83,703,072.80
  4. Step 4: Simplify right side
    256,276,359.20x = 32,180,184,173,728,336
  5. Step 5: Solve for x
    x = 32,180,184,173,728,336/256,276,359.20
  6. Step 6: Final answer
    x = 125,568,289.93

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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.