Home / 216,439,821.68-298,678,948.96-117,318,440.88

Finding the Fourth Proportional to 216,439,821.68, 298,678,948.96 and 117,318,440.88

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Solution

The fourth proportional to 216,439,821.68, 298,678,948.96 and 117,318,440.88 is: 161,895,109.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,439,821.68 : 298,678,948.96 = 117,318,440.88 : x
  2. Step 2: Convert to fraction form
    216,439,821.68/298,678,948.96 = 117,318,440.88/x
  3. Step 3: Cross multiply
    216,439,821.68x = 298,678,948.96 × 117,318,440.88
  4. Step 4: Simplify right side
    216,439,821.68x = 35,040,548,615,664,292
  5. Step 5: Solve for x
    x = 35,040,548,615,664,292/216,439,821.68
  6. Step 6: Final answer
    x = 161,895,109.43

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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.