Home / 18,683,876.20-28,025,814.30-10,180,820.20

Finding the Fourth Proportional to 18,683,876.20, 28,025,814.30 and 10,180,820.20

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Solution

The fourth proportional to 18,683,876.20, 28,025,814.30 and 10,180,820.20 is: 15,271,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,876.20 : 28,025,814.30 = 10,180,820.20 : x
  2. Step 2: Convert to fraction form
    18,683,876.20/28,025,814.30 = 10,180,820.20/x
  3. Step 3: Cross multiply
    18,683,876.20x = 28,025,814.30 × 10,180,820.20
  4. Step 4: Simplify right side
    18,683,876.20x = 285,325,776,346,888.88
  5. Step 5: Solve for x
    x = 285,325,776,346,888.88/18,683,876.20
  6. Step 6: Final answer
    x = 15,271,230.30

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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.