Home / 20,464,612.98-28,238,485.76-12,205,644.56

Finding the Fourth Proportional to 20,464,612.98, 28,238,485.76 and 12,205,644.56

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Solution

The fourth proportional to 20,464,612.98, 28,238,485.76 and 12,205,644.56 is: 16,842,190.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464,612.98 : 28,238,485.76 = 12,205,644.56 : x
  2. Step 2: Convert to fraction form
    20,464,612.98/28,238,485.76 = 12,205,644.56/x
  3. Step 3: Cross multiply
    20,464,612.98x = 28,238,485.76 × 12,205,644.56
  4. Step 4: Simplify right side
    20,464,612.98x = 344,668,920,099,181.50
  5. Step 5: Solve for x
    x = 344,668,920,099,181.50/20,464,612.98
  6. Step 6: Final answer
    x = 16,842,190.98

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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.