Home / 393,346,399.20-590,467,496.40-231,879,314.40

Finding the Fourth Proportional to 393,346,399.20, 590,467,496.40 and 231,879,314.40

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Solution

The fourth proportional to 393,346,399.20, 590,467,496.40 and 231,879,314.40 is: 348,083,009.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,346,399.20 : 590,467,496.40 = 231,879,314.40 : x
  2. Step 2: Convert to fraction form
    393,346,399.20/590,467,496.40 = 231,879,314.40/x
  3. Step 3: Cross multiply
    393,346,399.20x = 590,467,496.40 × 231,879,314.40
  4. Step 4: Simplify right side
    393,346,399.20x = 136,917,198,240,716,464
  5. Step 5: Solve for x
    x = 136,917,198,240,716,464/393,346,399.20
  6. Step 6: Final answer
    x = 348,083,009.07

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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.