Home / 239,245,540.40-330,159,139.62-129,237,253.40

Finding the Fourth Proportional to 239,245,540.40, 330,159,139.62 and 129,237,253.40

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Solution

The fourth proportional to 239,245,540.40, 330,159,139.62 and 129,237,253.40 is: 178,347,568.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,245,540.40 : 330,159,139.62 = 129,237,253.40 : x
  2. Step 2: Convert to fraction form
    239,245,540.40/330,159,139.62 = 129,237,253.40/x
  3. Step 3: Cross multiply
    239,245,540.40x = 330,159,139.62 × 129,237,253.40
  4. Step 4: Simplify right side
    239,245,540.40x = 42,668,860,389,395,920
  5. Step 5: Solve for x
    x = 42,668,860,389,395,920/239,245,540.40
  6. Step 6: Final answer
    x = 178,347,568.44

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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.