Home / 140,803,020.54-194,317,148.07-78,923,375.10

Finding the Fourth Proportional to 140,803,020.54, 194,317,148.07 and 78,923,375.10

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Solution

The fourth proportional to 140,803,020.54, 194,317,148.07 and 78,923,375.10 is: 108,919,290.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,803,020.54 : 194,317,148.07 = 78,923,375.10 : x
  2. Step 2: Convert to fraction form
    140,803,020.54/194,317,148.07 = 78,923,375.10/x
  3. Step 3: Cross multiply
    140,803,020.54x = 194,317,148.07 × 78,923,375.10
  4. Step 4: Simplify right side
    140,803,020.54x = 15,336,165,165,490,850
  5. Step 5: Solve for x
    x = 15,336,165,165,490,850/140,803,020.54
  6. Step 6: Final answer
    x = 108,919,290.98

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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.