Home / 379,540,997.22-569,389,144.35-130,513,912.31

Finding the Fourth Proportional to 379,540,997.22, 569,389,144.35 and 130,513,912.31

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Solution

The fourth proportional to 379,540,997.22, 569,389,144.35 and 130,513,912.31 is: 195,797,569.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,540,997.22 : 569,389,144.35 = 130,513,912.31 : x
  2. Step 2: Convert to fraction form
    379,540,997.22/569,389,144.35 = 130,513,912.31/x
  3. Step 3: Cross multiply
    379,540,997.22x = 569,389,144.35 × 130,513,912.31
  4. Step 4: Simplify right side
    379,540,997.22x = 74,313,204,855,961,840
  5. Step 5: Solve for x
    x = 74,313,204,855,961,840/379,540,997.22
  6. Step 6: Final answer
    x = 195,797,569.70

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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.