Home / 20,101,751.49-30,155,990.42-15,783,627.54

Finding the Fourth Proportional to 20,101,751.49, 30,155,990.42 and 15,783,627.54

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Solution

The fourth proportional to 20,101,751.49, 30,155,990.42 and 15,783,627.54 is: 23,678,082.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101,751.49 : 30,155,990.42 = 15,783,627.54 : x
  2. Step 2: Convert to fraction form
    20,101,751.49/30,155,990.42 = 15,783,627.54/x
  3. Step 3: Cross multiply
    20,101,751.49x = 30,155,990.42 × 15,783,627.54
  4. Step 4: Simplify right side
    20,101,751.49x = 475,970,920,889,088.19
  5. Step 5: Solve for x
    x = 475,970,920,889,088.19/20,101,751.49
  6. Step 6: Final answer
    x = 23,678,082.04

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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.