Home / 216,439,820.52-298,678,947.37-117,318,439.72

Finding the Fourth Proportional to 216,439,820.52, 298,678,947.37 and 117,318,439.72

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Solution

The fourth proportional to 216,439,820.52, 298,678,947.37 and 117,318,439.72 is: 161,895,107.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,439,820.52 : 298,678,947.37 = 117,318,439.72 : x
  2. Step 2: Convert to fraction form
    216,439,820.52/298,678,947.37 = 117,318,439.72/x
  3. Step 3: Cross multiply
    216,439,820.52x = 298,678,947.37 × 117,318,439.72
  4. Step 4: Simplify right side
    216,439,820.52x = 35,040,548,082,660,396
  5. Step 5: Solve for x
    x = 35,040,548,082,660,396/216,439,820.52
  6. Step 6: Final answer
    x = 161,895,107.83

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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.