Home / 426,562,405.40-639,843,608.10-377,244,680.60

Finding the Fourth Proportional to 426,562,405.40, 639,843,608.10 and 377,244,680.60

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Solution

The fourth proportional to 426,562,405.40, 639,843,608.10 and 377,244,680.60 is: 565,867,020.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,562,405.40 : 639,843,608.10 = 377,244,680.60 : x
  2. Step 2: Convert to fraction form
    426,562,405.40/639,843,608.10 = 377,244,680.60/x
  3. Step 3: Cross multiply
    426,562,405.40x = 639,843,608.10 × 377,244,680.60
  4. Step 4: Simplify right side
    426,562,405.40x = 241,377,597,571,636,096
  5. Step 5: Solve for x
    x = 241,377,597,571,636,096/426,562,405.40
  6. Step 6: Final answer
    x = 565,867,020.90

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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.