Home / 12,139,825.77-16,741,571.67-7,790,281.29

Finding the Fourth Proportional to 12,139,825.77, 16,741,571.67 and 7,790,281.29

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Solution

The fourth proportional to 12,139,825.77, 16,741,571.67 and 7,790,281.29 is: 10,743,280.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,139,825.77 : 16,741,571.67 = 7,790,281.29 : x
  2. Step 2: Convert to fraction form
    12,139,825.77/16,741,571.67 = 7,790,281.29/x
  3. Step 3: Cross multiply
    12,139,825.77x = 16,741,571.67 × 7,790,281.29
  4. Step 4: Simplify right side
    12,139,825.77x = 130,421,552,545,995.05
  5. Step 5: Solve for x
    x = 130,421,552,545,995.05/12,139,825.77
  6. Step 6: Final answer
    x = 10,743,280.42

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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.