Home / 141,091,400.12-194,718,410.91-78,379,697.25

Finding the Fourth Proportional to 141,091,400.12, 194,718,410.91 and 78,379,697.25

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Solution

The fourth proportional to 141,091,400.12, 194,718,410.91 and 78,379,697.25 is: 108,170,803.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,091,400.12 : 194,718,410.91 = 78,379,697.25 : x
  2. Step 2: Convert to fraction form
    141,091,400.12/194,718,410.91 = 78,379,697.25/x
  3. Step 3: Cross multiply
    141,091,400.12x = 194,718,410.91 × 78,379,697.25
  4. Step 4: Simplify right side
    141,091,400.12x = 15,261,970,096,126,896
  5. Step 5: Solve for x
    x = 15,261,970,096,126,896/141,091,400.12
  6. Step 6: Final answer
    x = 108,170,803.35

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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.