Home / 90,836,738.20-136,286,600.10-39,755,416.60

Finding the Fourth Proportional to 90,836,738.20, 136,286,600.10 and 39,755,416.60

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Solution

The fourth proportional to 90,836,738.20, 136,286,600.10 and 39,755,416.60 is: 59,646,907.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,836,738.20 : 136,286,600.10 = 39,755,416.60 : x
  2. Step 2: Convert to fraction form
    90,836,738.20/136,286,600.10 = 39,755,416.60/x
  3. Step 3: Cross multiply
    90,836,738.20x = 136,286,600.10 × 39,755,416.60
  4. Step 4: Simplify right side
    90,836,738.20x = 5,418,130,563,973,102
  5. Step 5: Solve for x
    x = 5,418,130,563,973,102/90,836,738.20
  6. Step 6: Final answer
    x = 59,646,907.97

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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.