Home / 20,434,331.99-30,616,810.90-12,330,278.39

Finding the Fourth Proportional to 20,434,331.99, 30,616,810.90 and 12,330,278.39

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Solution

The fourth proportional to 20,434,331.99, 30,616,810.90 and 12,330,278.39 is: 18,474,487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434,331.99 : 30,616,810.90 = 12,330,278.39 : x
  2. Step 2: Convert to fraction form
    20,434,331.99/30,616,810.90 = 12,330,278.39/x
  3. Step 3: Cross multiply
    20,434,331.99x = 30,616,810.90 × 12,330,278.39
  4. Step 4: Simplify right side
    20,434,331.99x = 377,513,801,627,076.69
  5. Step 5: Solve for x
    x = 377,513,801,627,076.69/20,434,331.99
  6. Step 6: Final answer
    x = 18,474,487.05

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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.