Home / 216,439,828.57-298,678,958.44-117,318,447.78

Finding the Fourth Proportional to 216,439,828.57, 298,678,958.44 and 117,318,447.78

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Solution

The fourth proportional to 216,439,828.57, 298,678,958.44 and 117,318,447.78 is: 161,895,118.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,439,828.57 : 298,678,958.44 = 117,318,447.78 : x
  2. Step 2: Convert to fraction form
    216,439,828.57/298,678,958.44 = 117,318,447.78/x
  3. Step 3: Cross multiply
    216,439,828.57x = 298,678,958.44 × 117,318,447.78
  4. Step 4: Simplify right side
    216,439,828.57x = 35,040,551,788,727,932
  5. Step 5: Solve for x
    x = 35,040,551,788,727,932/216,439,828.57
  6. Step 6: Final answer
    x = 161,895,118.94

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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.