Home / 667,308,631.20-1,000,962,946.80-621,958,999.20

Finding the Fourth Proportional to 667,308,631.20, 1,000,962,946.80 and 621,958,999.20

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Solution

The fourth proportional to 667,308,631.20, 1,000,962,946.80 and 621,958,999.20 is: 932,938,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,308,631.20 : 1,000,962,946.80 = 621,958,999.20 : x
  2. Step 2: Convert to fraction form
    667,308,631.20/1,000,962,946.80 = 621,958,999.20/x
  3. Step 3: Cross multiply
    667,308,631.20x = 1,000,962,946.80 × 621,958,999.20
  4. Step 4: Simplify right side
    667,308,631.20x = 622,557,912,628,010,880
  5. Step 5: Solve for x
    x = 622,557,912,628,010,880/667,308,631.20
  6. Step 6: Final answer
    x = 932,938,498.80

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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.