Home / 18,905,416.80-28,358,125.20-18,485,512.80

Finding the Fourth Proportional to 18,905,416.80, 28,358,125.20 and 18,485,512.80

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Solution

The fourth proportional to 18,905,416.80, 28,358,125.20 and 18,485,512.80 is: 27,728,269.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905,416.80 : 28,358,125.20 = 18,485,512.80 : x
  2. Step 2: Convert to fraction form
    18,905,416.80/28,358,125.20 = 18,485,512.80/x
  3. Step 3: Cross multiply
    18,905,416.80x = 28,358,125.20 × 18,485,512.80
  4. Step 4: Simplify right side
    18,905,416.80x = 524,214,486,368,602.56
  5. Step 5: Solve for x
    x = 524,214,486,368,602.56/18,905,416.80
  6. Step 6: Final answer
    x = 27,728,269.20

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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.