Home / 309,363,143.57-426,915,218.59-170,133,905.32

Finding the Fourth Proportional to 309,363,143.57, 426,915,218.59 and 170,133,905.32

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Solution

The fourth proportional to 309,363,143.57, 426,915,218.59 and 170,133,905.32 is: 234,781,533.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,363,143.57 : 426,915,218.59 = 170,133,905.32 : x
  2. Step 2: Convert to fraction form
    309,363,143.57/426,915,218.59 = 170,133,905.32/x
  3. Step 3: Cross multiply
    309,363,143.57x = 426,915,218.59 × 170,133,905.32
  4. Step 4: Simplify right side
    309,363,143.57x = 72,632,753,377,765,536
  5. Step 5: Solve for x
    x = 72,632,753,377,765,536/309,363,143.57
  6. Step 6: Final answer
    x = 234,781,533.90

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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.