Home / 28,308,942.72-42,463,342.58-7,838,593.97

Finding the Fourth Proportional to 28,308,942.72, 42,463,342.58 and 7,838,593.97

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Solution

The fourth proportional to 28,308,942.72, 42,463,342.58 and 7,838,593.97 is: 11,757,871.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,308,942.72 : 42,463,342.58 = 7,838,593.97 : x
  2. Step 2: Convert to fraction form
    28,308,942.72/42,463,342.58 = 7,838,593.97/x
  3. Step 3: Cross multiply
    28,308,942.72x = 42,463,342.58 × 7,838,593.97
  4. Step 4: Simplify right side
    28,308,942.72x = 332,852,900,842,122.56
  5. Step 5: Solve for x
    x = 332,852,900,842,122.56/28,308,942.72
  6. Step 6: Final answer
    x = 11,757,871.15

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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.