Home / 14,190,780.40-21,288,935.40-5,669,666.80

Finding the Fourth Proportional to 14,190,780.40, 21,288,935.40 and 5,669,666.80

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Solution

The fourth proportional to 14,190,780.40, 21,288,935.40 and 5,669,666.80 is: 8,505,604.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190,780.40 : 21,288,935.40 = 5,669,666.80 : x
  2. Step 2: Convert to fraction form
    14,190,780.40/21,288,935.40 = 5,669,666.80/x
  3. Step 3: Cross multiply
    14,190,780.40x = 21,288,935.40 × 5,669,666.80
  4. Step 4: Simplify right side
    14,190,780.40x = 120,701,170,244,724.70
  5. Step 5: Solve for x
    x = 120,701,170,244,724.70/14,190,780.40
  6. Step 6: Final answer
    x = 8,505,604.83

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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.