Home / 393,335,999.70-590,003,999.55-211,937,471.70

Finding the Fourth Proportional to 393,335,999.70, 590,003,999.55 and 211,937,471.70

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Solution

The fourth proportional to 393,335,999.70, 590,003,999.55 and 211,937,471.70 is: 317,906,207.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,335,999.70 : 590,003,999.55 = 211,937,471.70 : x
  2. Step 2: Convert to fraction form
    393,335,999.70/590,003,999.55 = 211,937,471.70/x
  3. Step 3: Cross multiply
    393,335,999.70x = 590,003,999.55 × 211,937,471.70
  4. Step 4: Simplify right side
    393,335,999.70x = 125,043,955,957,514,928
  5. Step 5: Solve for x
    x = 125,043,955,957,514,928/393,335,999.70
  6. Step 6: Final answer
    x = 317,906,207.55

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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.