Home / 18,690,391-25,792,589.46-10,850,630.68

Finding the Fourth Proportional to 18,690,391, 25,792,589.46 and 10,850,630.68

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Solution

The fourth proportional to 18,690,391, 25,792,589.46 and 10,850,630.68 is: 14,973,783.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690,391 : 25,792,589.46 = 10,850,630.68 : x
  2. Step 2: Convert to fraction form
    18,690,391/25,792,589.46 = 10,850,630.68/x
  3. Step 3: Cross multiply
    18,690,391x = 25,792,589.46 × 10,850,630.68
  4. Step 4: Simplify right side
    18,690,391x = 279,865,862,511,320.62
  5. Step 5: Solve for x
    x = 279,865,862,511,320.62/18,690,391
  6. Step 6: Final answer
    x = 14,973,783.19

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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.