Home / 86,967,832.20-130,467,494.70-43,728,217.80

Finding the Fourth Proportional to 86,967,832.20, 130,467,494.70 and 43,728,217.80

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Solution

The fourth proportional to 86,967,832.20, 130,467,494.70 and 43,728,217.80 is: 65,600,244.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,967,832.20 : 130,467,494.70 = 43,728,217.80 : x
  2. Step 2: Convert to fraction form
    86,967,832.20/130,467,494.70 = 43,728,217.80/x
  3. Step 3: Cross multiply
    86,967,832.20x = 130,467,494.70 × 43,728,217.80
  4. Step 4: Simplify right side
    86,967,832.20x = 5,705,111,024,061,945
  5. Step 5: Solve for x
    x = 5,705,111,024,061,945/86,967,832.20
  6. Step 6: Final answer
    x = 65,600,244.13

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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.