Home / 20,101,738.05-30,155,970.26-15,783,614.07

Finding the Fourth Proportional to 20,101,738.05, 30,155,970.26 and 15,783,614.07

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Solution

The fourth proportional to 20,101,738.05, 30,155,970.26 and 15,783,614.07 is: 23,678,061.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101,738.05 : 30,155,970.26 = 15,783,614.07 : x
  2. Step 2: Convert to fraction form
    20,101,738.05/30,155,970.26 = 15,783,614.07/x
  3. Step 3: Cross multiply
    20,101,738.05x = 30,155,970.26 × 15,783,614.07
  4. Step 4: Simplify right side
    20,101,738.05x = 475,970,196,490,237.56
  5. Step 5: Solve for x
    x = 475,970,196,490,237.56/20,101,738.05
  6. Step 6: Final answer
    x = 23,678,061.83

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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.