Home / 672,912,072.90-1,009,504,578.15-381,918,600.90

Finding the Fourth Proportional to 672,912,072.90, 1,009,504,578.15 and 381,918,600.90

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Solution

The fourth proportional to 672,912,072.90, 1,009,504,578.15 and 381,918,600.90 is: 572,955,355.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,912,072.90 : 1,009,504,578.15 = 381,918,600.90 : x
  2. Step 2: Convert to fraction form
    672,912,072.90/1,009,504,578.15 = 381,918,600.90/x
  3. Step 3: Cross multiply
    672,912,072.90x = 1,009,504,578.15 × 381,918,600.90
  4. Step 4: Simplify right side
    672,912,072.90x = 385,548,576,089,192,704
  5. Step 5: Solve for x
    x = 385,548,576,089,192,704/672,912,072.90
  6. Step 6: Final answer
    x = 572,955,355.71

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1.5x scale

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.