Home / 141,642,450.80-212,463,676.20-84,105,105.20

Finding the Fourth Proportional to 141,642,450.80, 212,463,676.20 and 84,105,105.20

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Solution

The fourth proportional to 141,642,450.80, 212,463,676.20 and 84,105,105.20 is: 126,157,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,642,450.80 : 212,463,676.20 = 84,105,105.20 : x
  2. Step 2: Convert to fraction form
    141,642,450.80/212,463,676.20 = 84,105,105.20/x
  3. Step 3: Cross multiply
    141,642,450.80x = 212,463,676.20 × 84,105,105.20
  4. Step 4: Simplify right side
    141,642,450.80x = 17,869,279,837,979,736
  5. Step 5: Solve for x
    x = 17,869,279,837,979,736/141,642,450.80
  6. Step 6: Final answer
    x = 126,157,657.80

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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.