Home / 13,718,645.52-18,930,366.16-7,919,295.58

Finding the Fourth Proportional to 13,718,645.52, 18,930,366.16 and 7,919,295.58

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Solution

The fourth proportional to 13,718,645.52, 18,930,366.16 and 7,919,295.58 is: 10,927,840.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718,645.52 : 18,930,366.16 = 7,919,295.58 : x
  2. Step 2: Convert to fraction form
    13,718,645.52/18,930,366.16 = 7,919,295.58/x
  3. Step 3: Cross multiply
    13,718,645.52x = 18,930,366.16 × 7,919,295.58
  4. Step 4: Simplify right side
    13,718,645.52x = 149,915,165,058,669.56
  5. Step 5: Solve for x
    x = 149,915,165,058,669.56/13,718,645.52
  6. Step 6: Final answer
    x = 10,927,840.13

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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.