Home / 20,265,269.80-30,420,023.10-11,307,317.80

Finding the Fourth Proportional to 20,265,269.80, 30,420,023.10 and 11,307,317.80

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Solution

The fourth proportional to 20,265,269.80, 30,420,023.10 and 11,307,317.80 is: 16,973,318.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265,269.80 : 30,420,023.10 = 11,307,317.80 : x
  2. Step 2: Convert to fraction form
    20,265,269.80/30,420,023.10 = 11,307,317.80/x
  3. Step 3: Cross multiply
    20,265,269.80x = 30,420,023.10 × 11,307,317.80
  4. Step 4: Simplify right side
    20,265,269.80x = 343,968,868,675,041.25
  5. Step 5: Solve for x
    x = 343,968,868,675,041.25/20,265,269.80
  6. Step 6: Final answer
    x = 16,973,318.00

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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.