Home / 20,330,563.47-28,056,177.73-11,163,206.22

Finding the Fourth Proportional to 20,330,563.47, 28,056,177.73 and 11,163,206.22

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Solution

The fourth proportional to 20,330,563.47, 28,056,177.73 and 11,163,206.22 is: 15,405,224.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330,563.47 : 28,056,177.73 = 11,163,206.22 : x
  2. Step 2: Convert to fraction form
    20,330,563.47/28,056,177.73 = 11,163,206.22/x
  3. Step 3: Cross multiply
    20,330,563.47x = 28,056,177.73 × 11,163,206.22
  4. Step 4: Simplify right side
    20,330,563.47x = 313,196,897,744,961.50
  5. Step 5: Solve for x
    x = 313,196,897,744,961.50/20,330,563.47
  6. Step 6: Final answer
    x = 15,405,224.66

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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.