Home / 823,601,840.79-1,235,401,717.92-210,186,080.31

Finding the Fourth Proportional to 823,601,840.79, 1,235,401,717.92 and 210,186,080.31

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Solution

The fourth proportional to 823,601,840.79, 1,235,401,717.92 and 210,186,080.31 is: 315,278,854.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,601,840.79 : 1,235,401,717.92 = 210,186,080.31 : x
  2. Step 2: Convert to fraction form
    823,601,840.79/1,235,401,717.92 = 210,186,080.31/x
  3. Step 3: Cross multiply
    823,601,840.79x = 1,235,401,717.92 × 210,186,080.31
  4. Step 4: Simplify right side
    823,601,840.79x = 259,664,244,697,845,120
  5. Step 5: Solve for x
    x = 259,664,244,697,845,120/823,601,840.79
  6. Step 6: Final answer
    x = 315,278,854.22

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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.