Home / 18,771,273.20-28,135,914.60-10,688,121.20

Finding the Fourth Proportional to 18,771,273.20, 28,135,914.60 and 10,688,121.20

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Solution

The fourth proportional to 18,771,273.20, 28,135,914.60 and 10,688,121.20 is: 16,020,227.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771,273.20 : 28,135,914.60 = 10,688,121.20 : x
  2. Step 2: Convert to fraction form
    18,771,273.20/28,135,914.60 = 10,688,121.20/x
  3. Step 3: Cross multiply
    18,771,273.20x = 28,135,914.60 × 10,688,121.20
  4. Step 4: Simplify right side
    18,771,273.20x = 300,720,065,317,649.50
  5. Step 5: Solve for x
    x = 300,720,065,317,649.50/18,771,273.20
  6. Step 6: Final answer
    x = 16,020,227.40

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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.