Home / 20,390,757.37-28,139,362.20-11,098,305.29

Finding the Fourth Proportional to 20,390,757.37, 28,139,362.20 and 11,098,305.29

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Solution

The fourth proportional to 20,390,757.37, 28,139,362.20 and 11,098,305.29 is: 15,315,725.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,390,757.37 : 28,139,362.20 = 11,098,305.29 : x
  2. Step 2: Convert to fraction form
    20,390,757.37/28,139,362.20 = 11,098,305.29/x
  3. Step 3: Cross multiply
    20,390,757.37x = 28,139,362.20 × 11,098,305.29
  4. Step 4: Simplify right side
    20,390,757.37x = 312,299,232,431,834.44
  5. Step 5: Solve for x
    x = 312,299,232,431,834.44/20,390,757.37
  6. Step 6: Final answer
    x = 15,315,725.00

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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.