Home / 122,019,586.34-168,438,560.49-82,380,816.07

Finding the Fourth Proportional to 122,019,586.34, 168,438,560.49 and 82,380,816.07

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Solution

The fourth proportional to 122,019,586.34, 168,438,560.49 and 82,380,816.07 is: 113,720,317.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,019,586.34 : 168,438,560.49 = 82,380,816.07 : x
  2. Step 2: Convert to fraction form
    122,019,586.34/168,438,560.49 = 82,380,816.07/x
  3. Step 3: Cross multiply
    122,019,586.34x = 168,438,560.49 × 82,380,816.07
  4. Step 4: Simplify right side
    122,019,586.34x = 13,876,106,070,401,162
  5. Step 5: Solve for x
    x = 13,876,106,070,401,162/122,019,586.34
  6. Step 6: Final answer
    x = 113,720,317.26

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1.5x scale

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.