Home / 20,057,360.82-30,019,003.57-11,419,142.30

Finding the Fourth Proportional to 20,057,360.82, 30,019,003.57 and 11,419,142.30

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Solution

The fourth proportional to 20,057,360.82, 30,019,003.57 and 11,419,142.30 is: 17,090,547.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057,360.82 : 30,019,003.57 = 11,419,142.30 : x
  2. Step 2: Convert to fraction form
    20,057,360.82/30,019,003.57 = 11,419,142.30/x
  3. Step 3: Cross multiply
    20,057,360.82x = 30,019,003.57 × 11,419,142.30
  4. Step 4: Simplify right side
    20,057,360.82x = 342,791,273,470,038.06
  5. Step 5: Solve for x
    x = 342,791,273,470,038.06/20,057,360.82
  6. Step 6: Final answer
    x = 17,090,547.28

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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.