Home / 100,090,721.91-150,107,083.24-30,058,125.15

Finding the Fourth Proportional to 100,090,721.91, 150,107,083.24 and 30,058,125.15

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Solution

The fourth proportional to 100,090,721.91, 150,107,083.24 and 30,058,125.15 is: 45,078,478.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,090,721.91 : 150,107,083.24 = 30,058,125.15 : x
  2. Step 2: Convert to fraction form
    100,090,721.91/150,107,083.24 = 30,058,125.15/x
  3. Step 3: Cross multiply
    100,090,721.91x = 150,107,083.24 × 30,058,125.15
  4. Step 4: Simplify right side
    100,090,721.91x = 4,511,937,493,103,707
  5. Step 5: Solve for x
    x = 4,511,937,493,103,707/100,090,721.91
  6. Step 6: Final answer
    x = 45,078,478.88

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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.