Home / 212,487,414.40-318,731,121.60-194,347,561.60

Finding the Fourth Proportional to 212,487,414.40, 318,731,121.60 and 194,347,561.60

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Solution

The fourth proportional to 212,487,414.40, 318,731,121.60 and 194,347,561.60 is: 291,521,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,487,414.40 : 318,731,121.60 = 194,347,561.60 : x
  2. Step 2: Convert to fraction form
    212,487,414.40/318,731,121.60 = 194,347,561.60/x
  3. Step 3: Cross multiply
    212,487,414.40x = 318,731,121.60 × 194,347,561.60
  4. Step 4: Simplify right side
    212,487,414.40x = 61,944,616,288,993,096
  5. Step 5: Solve for x
    x = 61,944,616,288,993,096/212,487,414.40
  6. Step 6: Final answer
    x = 291,521,342.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.