Finding the Fourth Proportional to 1,489,927,113.45, 2,234,816,377.65 and 557,181,387.09
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Solution
The fourth proportional to 1,489,927,113.45, 2,234,816,377.65 and 557,181,387.09 is: 835,744,297.79
Step by Step Solution
- Step 1: Write the proportion equation
1,489,927,113.45 : 2,234,816,377.65 = 557,181,387.09 : x - Step 2: Convert to fraction form
1,489,927,113.45/2,234,816,377.65 = 557,181,387.09/x - Step 3: Cross multiply
1,489,927,113.45x = 2,234,816,377.65 × 557,181,387.09 - Step 4: Simplify right side
1,489,927,113.45x = 1,245,198,089,190,476,288 - Step 5: Solve for x
x = 1,245,198,089,190,476,288/1,489,927,113.45 - Step 6: Final answer
x = 835,744,297.79
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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.