Home / 13,165,815.66-18,161,509.23-7,658,570.94

Finding the Fourth Proportional to 13,165,815.66, 18,161,509.23 and 7,658,570.94

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Solution

The fourth proportional to 13,165,815.66, 18,161,509.23 and 7,658,570.94 is: 10,564,571.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165,815.66 : 18,161,509.23 = 7,658,570.94 : x
  2. Step 2: Convert to fraction form
    13,165,815.66/18,161,509.23 = 7,658,570.94/x
  3. Step 3: Cross multiply
    13,165,815.66x = 18,161,509.23 × 7,658,570.94
  4. Step 4: Simplify right side
    13,165,815.66x = 139,091,206,815,419.78
  5. Step 5: Solve for x
    x = 139,091,206,815,419.78/13,165,815.66
  6. Step 6: Final answer
    x = 10,564,571.95

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.