Home / 20,617,699.86-28,450,766.52-11,916,436.05

Finding the Fourth Proportional to 20,617,699.86, 28,450,766.52 and 11,916,436.05

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Solution

The fourth proportional to 20,617,699.86, 28,450,766.52 and 11,916,436.05 is: 16,443,722.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617,699.86 : 28,450,766.52 = 11,916,436.05 : x
  2. Step 2: Convert to fraction form
    20,617,699.86/28,450,766.52 = 11,916,436.05/x
  3. Step 3: Cross multiply
    20,617,699.86x = 28,450,766.52 × 11,916,436.05
  4. Step 4: Simplify right side
    20,617,699.86x = 339,031,739,809,061.06
  5. Step 5: Solve for x
    x = 339,031,739,809,061.06/20,617,699.86
  6. Step 6: Final answer
    x = 16,443,722.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.