Home / 511,967,717.37-706,255,164.90-310,971,105.09

Finding the Fourth Proportional to 511,967,717.37, 706,255,164.90 and 310,971,105.09

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Solution

The fourth proportional to 511,967,717.37, 706,255,164.90 and 310,971,105.09 is: 428,982,026.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,967,717.37 : 706,255,164.90 = 310,971,105.09 : x
  2. Step 2: Convert to fraction form
    511,967,717.37/706,255,164.90 = 310,971,105.09/x
  3. Step 3: Cross multiply
    511,967,717.37x = 706,255,164.90 × 310,971,105.09
  4. Step 4: Simplify right side
    511,967,717.37x = 219,624,949,104,473,152
  5. Step 5: Solve for x
    x = 219,624,949,104,473,152/511,967,717.37
  6. Step 6: Final answer
    x = 428,982,026.90

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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.