Home / 13,563,791.12-18,718,053.96-7,368,862.16

Finding the Fourth Proportional to 13,563,791.12, 18,718,053.96 and 7,368,862.16

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Solution

The fourth proportional to 13,563,791.12, 18,718,053.96 and 7,368,862.16 is: 10,169,041.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563,791.12 : 18,718,053.96 = 7,368,862.16 : x
  2. Step 2: Convert to fraction form
    13,563,791.12/18,718,053.96 = 7,368,862.16/x
  3. Step 3: Cross multiply
    13,563,791.12x = 18,718,053.96 × 7,368,862.16
  4. Step 4: Simplify right side
    13,563,791.12x = 137,930,759,534,682.16
  5. Step 5: Solve for x
    x = 137,930,759,534,682.16/13,563,791.12
  6. Step 6: Final answer
    x = 10,169,041.85

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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.