Home / 13,879,975.05-19,154,963.97-7,685,021.43

Finding the Fourth Proportional to 13,879,975.05, 19,154,963.97 and 7,685,021.43

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Solution

The fourth proportional to 13,879,975.05, 19,154,963.97 and 7,685,021.43 is: 10,605,660.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879,975.05 : 19,154,963.97 = 7,685,021.43 : x
  2. Step 2: Convert to fraction form
    13,879,975.05/19,154,963.97 = 7,685,021.43/x
  3. Step 3: Cross multiply
    13,879,975.05x = 19,154,963.97 × 7,685,021.43
  4. Step 4: Simplify right side
    13,879,975.05x = 147,206,308,600,327.88
  5. Step 5: Solve for x
    x = 147,206,308,600,327.88/13,879,975.05
  6. Step 6: Final answer
    x = 10,605,660.89

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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.