Home / 20,362,996.72-28,099,263.04-11,989,035.28

Finding the Fourth Proportional to 20,362,996.72, 28,099,263.04 and 11,989,035.28

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Solution

The fourth proportional to 20,362,996.72, 28,099,263.04 and 11,989,035.28 is: 16,543,884.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362,996.72 : 28,099,263.04 = 11,989,035.28 : x
  2. Step 2: Convert to fraction form
    20,362,996.72/28,099,263.04 = 11,989,035.28/x
  3. Step 3: Cross multiply
    20,362,996.72x = 28,099,263.04 × 11,989,035.28
  4. Step 4: Simplify right side
    20,362,996.72x = 336,883,055,928,560
  5. Step 5: Solve for x
    x = 336,883,055,928,560/20,362,996.72
  6. Step 6: Final answer
    x = 16,543,884.01

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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.