Home / 192,015,986.21-287,991,520.59-53,809,808.71

Finding the Fourth Proportional to 192,015,986.21, 287,991,520.59 and 53,809,808.71

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Solution

The fourth proportional to 192,015,986.21, 287,991,520.59 and 53,809,808.71 is: 80,705,616.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,015,986.21 : 287,991,520.59 = 53,809,808.71 : x
  2. Step 2: Convert to fraction form
    192,015,986.21/287,991,520.59 = 53,809,808.71/x
  3. Step 3: Cross multiply
    192,015,986.21x = 287,991,520.59 × 53,809,808.71
  4. Step 4: Simplify right side
    192,015,986.21x = 15,496,768,632,329,948
  5. Step 5: Solve for x
    x = 15,496,768,632,329,948/192,015,986.21
  6. Step 6: Final answer
    x = 80,705,616.95

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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.