Home / 387,873,619.56-535,276,972.62-211,672,992.96

Finding the Fourth Proportional to 387,873,619.56, 535,276,972.62 and 211,672,992.96

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Solution

The fourth proportional to 387,873,619.56, 535,276,972.62 and 211,672,992.96 is: 292,114,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,873,619.56 : 535,276,972.62 = 211,672,992.96 : x
  2. Step 2: Convert to fraction form
    387,873,619.56/535,276,972.62 = 211,672,992.96/x
  3. Step 3: Cross multiply
    387,873,619.56x = 535,276,972.62 × 211,672,992.96
  4. Step 4: Simplify right side
    387,873,619.56x = 113,303,678,857,043,376
  5. Step 5: Solve for x
    x = 113,303,678,857,043,376/387,873,619.56
  6. Step 6: Final answer
    x = 292,114,939.36

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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.