Home / 20,728,112.60-31,092,168.90-15,945,143.60

Finding the Fourth Proportional to 20,728,112.60, 31,092,168.90 and 15,945,143.60

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Solution

The fourth proportional to 20,728,112.60, 31,092,168.90 and 15,945,143.60 is: 23,917,715.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,728,112.60 : 31,092,168.90 = 15,945,143.60 : x
  2. Step 2: Convert to fraction form
    20,728,112.60/31,092,168.90 = 15,945,143.60/x
  3. Step 3: Cross multiply
    20,728,112.60x = 31,092,168.90 × 15,945,143.60
  4. Step 4: Simplify right side
    20,728,112.60x = 495,769,097,945,954
  5. Step 5: Solve for x
    x = 495,769,097,945,954/20,728,112.60
  6. Step 6: Final answer
    x = 23,917,715.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.