Home / 13,649,898.70-18,836,988.91-7,769,245.85

Finding the Fourth Proportional to 13,649,898.70, 18,836,988.91 and 7,769,245.85

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Solution

The fourth proportional to 13,649,898.70, 18,836,988.91 and 7,769,245.85 is: 10,721,632.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649,898.70 : 18,836,988.91 = 7,769,245.85 : x
  2. Step 2: Convert to fraction form
    13,649,898.70/18,836,988.91 = 7,769,245.85/x
  3. Step 3: Cross multiply
    13,649,898.70x = 18,836,988.91 × 7,769,245.85
  4. Step 4: Simplify right side
    13,649,898.70x = 146,349,197,801,905.44
  5. Step 5: Solve for x
    x = 146,349,197,801,905.44/13,649,898.70
  6. Step 6: Final answer
    x = 10,721,632.52

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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.