Home / 20,743,967.70-31,115,951.55-11,178,029.70

Finding the Fourth Proportional to 20,743,967.70, 31,115,951.55 and 11,178,029.70

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Solution

The fourth proportional to 20,743,967.70, 31,115,951.55 and 11,178,029.70 is: 16,767,044.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743,967.70 : 31,115,951.55 = 11,178,029.70 : x
  2. Step 2: Convert to fraction form
    20,743,967.70/31,115,951.55 = 11,178,029.70/x
  3. Step 3: Cross multiply
    20,743,967.70x = 31,115,951.55 × 11,178,029.70
  4. Step 4: Simplify right side
    20,743,967.70x = 347,815,030,569,661
  5. Step 5: Solve for x
    x = 347,815,030,569,661/20,743,967.70
  6. Step 6: Final answer
    x = 16,767,044.55

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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.