Home / 20,099,430.20-30,139,814.10-8,734,028.60

Finding the Fourth Proportional to 20,099,430.20, 30,139,814.10 and 8,734,028.60

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Solution

The fourth proportional to 20,099,430.20, 30,139,814.10 and 8,734,028.60 is: 13,096,988.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,099,430.20 : 30,139,814.10 = 8,734,028.60 : x
  2. Step 2: Convert to fraction form
    20,099,430.20/30,139,814.10 = 8,734,028.60/x
  3. Step 3: Cross multiply
    20,099,430.20x = 30,139,814.10 × 8,734,028.60
  4. Step 4: Simplify right side
    20,099,430.20x = 263,241,998,348,083.25
  5. Step 5: Solve for x
    x = 263,241,998,348,083.25/20,099,430.20
  6. Step 6: Final answer
    x = 13,096,988.11

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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.