Home / 216,439,823.81-298,678,951.89-117,318,443.02

Finding the Fourth Proportional to 216,439,823.81, 298,678,951.89 and 117,318,443.02

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Solution

The fourth proportional to 216,439,823.81, 298,678,951.89 and 117,318,443.02 is: 161,895,112.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,439,823.81 : 298,678,951.89 = 117,318,443.02 : x
  2. Step 2: Convert to fraction form
    216,439,823.81/298,678,951.89 = 117,318,443.02/x
  3. Step 3: Cross multiply
    216,439,823.81x = 298,678,951.89 × 117,318,443.02
  4. Step 4: Simplify right side
    216,439,823.81x = 35,040,549,597,833,588
  5. Step 5: Solve for x
    x = 35,040,549,597,833,588/216,439,823.81
  6. Step 6: Final answer
    x = 161,895,112.37

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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.