Home / 12,528,067.30-18,792,100.95-10,638,499.30

Finding the Fourth Proportional to 12,528,067.30, 18,792,100.95 and 10,638,499.30

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Solution

The fourth proportional to 12,528,067.30, 18,792,100.95 and 10,638,499.30 is: 15,957,748.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,067.30 : 18,792,100.95 = 10,638,499.30 : x
  2. Step 2: Convert to fraction form
    12,528,067.30/18,792,100.95 = 10,638,499.30/x
  3. Step 3: Cross multiply
    12,528,067.30x = 18,792,100.95 × 10,638,499.30
  4. Step 4: Simplify right side
    12,528,067.30x = 199,919,752,802,104.34
  5. Step 5: Solve for x
    x = 199,919,752,802,104.34/12,528,067.30
  6. Step 6: Final answer
    x = 15,957,748.95

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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.