Home / 330,920,918.40-496,381,377.60-305,978,620.80

Finding the Fourth Proportional to 330,920,918.40, 496,381,377.60 and 305,978,620.80

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Solution

The fourth proportional to 330,920,918.40, 496,381,377.60 and 305,978,620.80 is: 458,967,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,920,918.40 : 496,381,377.60 = 305,978,620.80 : x
  2. Step 2: Convert to fraction form
    330,920,918.40/496,381,377.60 = 305,978,620.80/x
  3. Step 3: Cross multiply
    330,920,918.40x = 496,381,377.60 × 305,978,620.80
  4. Step 4: Simplify right side
    330,920,918.40x = 151,882,089,308,852,032
  5. Step 5: Solve for x
    x = 151,882,089,308,852,032/330,920,918.40
  6. Step 6: Final answer
    x = 458,967,931.20

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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.