Home / 18,689,201.80-28,033,802.70-12,264,670.60

Finding the Fourth Proportional to 18,689,201.80, 28,033,802.70 and 12,264,670.60

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Solution

The fourth proportional to 18,689,201.80, 28,033,802.70 and 12,264,670.60 is: 18,397,005.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,201.80 : 28,033,802.70 = 12,264,670.60 : x
  2. Step 2: Convert to fraction form
    18,689,201.80/28,033,802.70 = 12,264,670.60/x
  3. Step 3: Cross multiply
    18,689,201.80x = 28,033,802.70 × 12,264,670.60
  4. Step 4: Simplify right side
    18,689,201.80x = 343,825,355,780,890.62
  5. Step 5: Solve for x
    x = 343,825,355,780,890.62/18,689,201.80
  6. Step 6: Final answer
    x = 18,397,005.90

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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.