Home / 20,362,419.09-28,099,420.43-11,194,991.37

Finding the Fourth Proportional to 20,362,419.09, 28,099,420.43 and 11,194,991.37

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Solution

The fourth proportional to 20,362,419.09, 28,099,420.43 and 11,194,991.37 is: 15,448,693.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362,419.09 : 28,099,420.43 = 11,194,991.37 : x
  2. Step 2: Convert to fraction form
    20,362,419.09/28,099,420.43 = 11,194,991.37/x
  3. Step 3: Cross multiply
    20,362,419.09x = 28,099,420.43 × 11,194,991.37
  4. Step 4: Simplify right side
    20,362,419.09x = 314,572,769,159,876.69
  5. Step 5: Solve for x
    x = 314,572,769,159,876.69/20,362,419.09
  6. Step 6: Final answer
    x = 15,448,693.39

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1.5x scale

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.