Home / 19,618,821.72-27,058,636.38-12,745,518.36

Finding the Fourth Proportional to 19,618,821.72, 27,058,636.38 and 12,745,518.36

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Solution

The fourth proportional to 19,618,821.72, 27,058,636.38 and 12,745,518.36 is: 17,578,851.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,618,821.72 : 27,058,636.38 = 12,745,518.36 : x
  2. Step 2: Convert to fraction form
    19,618,821.72/27,058,636.38 = 12,745,518.36/x
  3. Step 3: Cross multiply
    19,618,821.72x = 27,058,636.38 × 12,745,518.36
  4. Step 4: Simplify right side
    19,618,821.72x = 344,876,346,777,853.94
  5. Step 5: Solve for x
    x = 344,876,346,777,853.94/19,618,821.72
  6. Step 6: Final answer
    x = 17,578,851.15

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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.