Home / 202,021,381.72-278,789,589.35-109,201,889.26

Finding the Fourth Proportional to 202,021,381.72, 278,789,589.35 and 109,201,889.26

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Solution

The fourth proportional to 202,021,381.72, 278,789,589.35 and 109,201,889.26 is: 150,698,651.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,021,381.72 : 278,789,589.35 = 109,201,889.26 : x
  2. Step 2: Convert to fraction form
    202,021,381.72/278,789,589.35 = 109,201,889.26/x
  3. Step 3: Cross multiply
    202,021,381.72x = 278,789,589.35 × 109,201,889.26
  4. Step 4: Simplify right side
    202,021,381.72x = 30,444,349,862,493,572
  5. Step 5: Solve for x
    x = 30,444,349,862,493,572/202,021,381.72
  6. Step 6: Final answer
    x = 150,698,651.81

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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.