Home / 30,019,168.72-41,430,896.04-19,006,940.32

Finding the Fourth Proportional to 30,019,168.72, 41,430,896.04 and 19,006,940.32

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Solution

The fourth proportional to 30,019,168.72, 41,430,896.04 and 19,006,940.32 is: 26,232,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,019,168.72 : 41,430,896.04 = 19,006,940.32 : x
  2. Step 2: Convert to fraction form
    30,019,168.72/41,430,896.04 = 19,006,940.32/x
  3. Step 3: Cross multiply
    30,019,168.72x = 41,430,896.04 × 19,006,940.32
  4. Step 4: Simplify right side
    30,019,168.72x = 787,474,568,436,404.38
  5. Step 5: Solve for x
    x = 787,474,568,436,404.38/30,019,168.72
  6. Step 6: Final answer
    x = 26,232,390.90

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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.