Home / 20,387,998.80-30,581,998.20-11,318,072.40

Finding the Fourth Proportional to 20,387,998.80, 30,581,998.20 and 11,318,072.40

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Solution

The fourth proportional to 20,387,998.80, 30,581,998.20 and 11,318,072.40 is: 16,977,108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,387,998.80 : 30,581,998.20 = 11,318,072.40 : x
  2. Step 2: Convert to fraction form
    20,387,998.80/30,581,998.20 = 11,318,072.40/x
  3. Step 3: Cross multiply
    20,387,998.80x = 30,581,998.20 × 11,318,072.40
  4. Step 4: Simplify right side
    20,387,998.80x = 346,129,269,764,269.69
  5. Step 5: Solve for x
    x = 346,129,269,764,269.69/20,387,998.80
  6. Step 6: Final answer
    x = 16,977,108.60

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1.5x scale

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.