Home / 385,372,101.08-531,813,997.49-209,160,076.39

Finding the Fourth Proportional to 385,372,101.08, 531,813,997.49 and 209,160,076.39

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Solution

The fourth proportional to 385,372,101.08, 531,813,997.49 and 209,160,076.39 is: 288,641,175.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,372,101.08 : 531,813,997.49 = 209,160,076.39 : x
  2. Step 2: Convert to fraction form
    385,372,101.08/531,813,997.49 = 209,160,076.39/x
  3. Step 3: Cross multiply
    385,372,101.08x = 531,813,997.49 × 209,160,076.39
  4. Step 4: Simplify right side
    385,372,101.08x = 111,234,256,337,904,336
  5. Step 5: Solve for x
    x = 111,234,256,337,904,336/385,372,101.08
  6. Step 6: Final answer
    x = 288,641,175.70

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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.