Home / 20,712,195.57-28,595,090.76-18,414,008.49

Finding the Fourth Proportional to 20,712,195.57, 28,595,090.76 and 18,414,008.49

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Solution

The fourth proportional to 20,712,195.57, 28,595,090.76 and 18,414,008.49 is: 25,422,232.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712,195.57 : 28,595,090.76 = 18,414,008.49 : x
  2. Step 2: Convert to fraction form
    20,712,195.57/28,595,090.76 = 18,414,008.49/x
  3. Step 3: Cross multiply
    20,712,195.57x = 28,595,090.76 × 18,414,008.49
  4. Step 4: Simplify right side
    20,712,195.57x = 526,550,244,026,960.56
  5. Step 5: Solve for x
    x = 526,550,244,026,960.56/20,712,195.57
  6. Step 6: Final answer
    x = 25,422,232.15

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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.