Home / 28,440,606.31-39,247,757.68-15,387,578.82

Finding the Fourth Proportional to 28,440,606.31, 39,247,757.68 and 15,387,578.82

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Solution

The fourth proportional to 28,440,606.31, 39,247,757.68 and 15,387,578.82 is: 21,234,707.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,440,606.31 : 39,247,757.68 = 15,387,578.82 : x
  2. Step 2: Convert to fraction form
    28,440,606.31/39,247,757.68 = 15,387,578.82/x
  3. Step 3: Cross multiply
    28,440,606.31x = 39,247,757.68 × 15,387,578.82
  4. Step 4: Simplify right side
    28,440,606.31x = 603,927,964,809,260.38
  5. Step 5: Solve for x
    x = 603,927,964,809,260.38/28,440,606.31
  6. Step 6: Final answer
    x = 21,234,707.81

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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.