Home / 18,683,881.20-28,025,821.80-10,180,825.20

Finding the Fourth Proportional to 18,683,881.20, 28,025,821.80 and 10,180,825.20

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Solution

The fourth proportional to 18,683,881.20, 28,025,821.80 and 10,180,825.20 is: 15,271,237.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,881.20 : 28,025,821.80 = 10,180,825.20 : x
  2. Step 2: Convert to fraction form
    18,683,881.20/28,025,821.80 = 10,180,825.20/x
  3. Step 3: Cross multiply
    18,683,881.20x = 28,025,821.80 × 10,180,825.20
  4. Step 4: Simplify right side
    18,683,881.20x = 285,325,992,832,149.38
  5. Step 5: Solve for x
    x = 285,325,992,832,149.38/18,683,881.20
  6. Step 6: Final answer
    x = 15,271,237.80

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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.