Home / 310,443,290.11-428,437,494.03-178,309,785.68

Finding the Fourth Proportional to 310,443,290.11, 428,437,494.03 and 178,309,785.68

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Solution

The fourth proportional to 310,443,290.11, 428,437,494.03 and 178,309,785.68 is: 246,082,296.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,443,290.11 : 428,437,494.03 = 178,309,785.68 : x
  2. Step 2: Convert to fraction form
    310,443,290.11/428,437,494.03 = 178,309,785.68/x
  3. Step 3: Cross multiply
    310,443,290.11x = 428,437,494.03 × 178,309,785.68
  4. Step 4: Simplify right side
    310,443,290.11x = 76,394,597,736,894,816
  5. Step 5: Solve for x
    x = 76,394,597,736,894,816/310,443,290.11
  6. Step 6: Final answer
    x = 246,082,296.41

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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.