Home / 20,330,579.70-28,056,200.16-11,163,222.48

Finding the Fourth Proportional to 20,330,579.70, 28,056,200.16 and 11,163,222.48

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Solution

The fourth proportional to 20,330,579.70, 28,056,200.16 and 11,163,222.48 is: 15,405,247.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330,579.70 : 28,056,200.16 = 11,163,222.48 : x
  2. Step 2: Convert to fraction form
    20,330,579.70/28,056,200.16 = 11,163,222.48/x
  3. Step 3: Cross multiply
    20,330,579.70x = 28,056,200.16 × 11,163,222.48
  4. Step 4: Simplify right side
    20,330,579.70x = 313,197,604,329,491.62
  5. Step 5: Solve for x
    x = 313,197,604,329,491.62/20,330,579.70
  6. Step 6: Final answer
    x = 15,405,247.12

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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.