Home / 20,430,400.56-28,194,170.04-11,263,371.36

Finding the Fourth Proportional to 20,430,400.56, 28,194,170.04 and 11,263,371.36

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Solution

The fourth proportional to 20,430,400.56, 28,194,170.04 and 11,263,371.36 is: 15,543,572.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,430,400.56 : 28,194,170.04 = 11,263,371.36 : x
  2. Step 2: Convert to fraction form
    20,430,400.56/28,194,170.04 = 11,263,371.36/x
  3. Step 3: Cross multiply
    20,430,400.56x = 28,194,170.04 × 11,263,371.36
  4. Step 4: Simplify right side
    20,430,400.56x = 317,561,407,347,506
  5. Step 5: Solve for x
    x = 317,561,407,347,506/20,430,400.56
  6. Step 6: Final answer
    x = 15,543,572.26

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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.