Home / 20,511,973.36-30,768,012.17-8,381,436.85

Finding the Fourth Proportional to 20,511,973.36, 30,768,012.17 and 8,381,436.85

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Solution

The fourth proportional to 20,511,973.36, 30,768,012.17 and 8,381,436.85 is: 12,572,176.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,511,973.36 : 30,768,012.17 = 8,381,436.85 : x
  2. Step 2: Convert to fraction form
    20,511,973.36/30,768,012.17 = 8,381,436.85/x
  3. Step 3: Cross multiply
    20,511,973.36x = 30,768,012.17 × 8,381,436.85
  4. Step 4: Simplify right side
    20,511,973.36x = 257,880,150,807,139.22
  5. Step 5: Solve for x
    x = 257,880,150,807,139.22/20,511,973.36
  6. Step 6: Final answer
    x = 12,572,176.57

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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.