Home / 20,289,270.97-30,434,349.53-12,209,005.81

Finding the Fourth Proportional to 20,289,270.97, 30,434,349.53 and 12,209,005.81

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Solution

The fourth proportional to 20,289,270.97, 30,434,349.53 and 12,209,005.81 is: 18,313,775.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289,270.97 : 30,434,349.53 = 12,209,005.81 : x
  2. Step 2: Convert to fraction form
    20,289,270.97/30,434,349.53 = 12,209,005.81/x
  3. Step 3: Cross multiply
    20,289,270.97x = 30,434,349.53 × 12,209,005.81
  4. Step 4: Simplify right side
    20,289,270.97x = 371,573,150,098,209.81
  5. Step 5: Solve for x
    x = 371,573,150,098,209.81/20,289,270.97
  6. Step 6: Final answer
    x = 18,313,775.33

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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.