Home / 1,310,379,261.40-1,963,017,975.30-727,069,619.80

Finding the Fourth Proportional to 1,310,379,261.40, 1,963,017,975.30 and 727,069,619.80

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Solution

The fourth proportional to 1,310,379,261.40, 1,963,017,975.30 and 727,069,619.80 is: 1,089,189,042.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,379,261.40 : 1,963,017,975.30 = 727,069,619.80 : x
  2. Step 2: Convert to fraction form
    1,310,379,261.40/1,963,017,975.30 = 727,069,619.80/x
  3. Step 3: Cross multiply
    1,310,379,261.40x = 1,963,017,975.30 × 727,069,619.80
  4. Step 4: Simplify right side
    1,310,379,261.40x = 1,427,250,732,961,936,640
  5. Step 5: Solve for x
    x = 1,427,250,732,961,936,640/1,310,379,261.40
  6. Step 6: Final answer
    x = 1,089,189,042.44

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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.