Home / 129,295,240.50-178,431,221.84-70,561,682.04

Finding the Fourth Proportional to 129,295,240.50, 178,431,221.84 and 70,561,682.04

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Solution

The fourth proportional to 129,295,240.50, 178,431,221.84 and 70,561,682.04 is: 97,377,189.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,295,240.50 : 178,431,221.84 = 70,561,682.04 : x
  2. Step 2: Convert to fraction form
    129,295,240.50/178,431,221.84 = 70,561,682.04/x
  3. Step 3: Cross multiply
    129,295,240.50x = 178,431,221.84 × 70,561,682.04
  4. Step 4: Simplify right side
    129,295,240.50x = 12,590,407,141,129,978
  5. Step 5: Solve for x
    x = 12,590,407,141,129,978/129,295,240.50
  6. Step 6: Final answer
    x = 97,377,189.54

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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.