Finding the Fourth Proportional to 1,489,927,077.49, 2,234,816,323.67 and 557,181,350.99
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Solution
The fourth proportional to 1,489,927,077.49, 2,234,816,323.67 and 557,181,350.99 is: 835,744,243.62
Step by Step Solution
- Step 1: Write the proportion equation
1,489,927,077.49 : 2,234,816,323.67 = 557,181,350.99 : x - Step 2: Convert to fraction form
1,489,927,077.49/2,234,816,323.67 = 557,181,350.99/x - Step 3: Cross multiply
1,489,927,077.49x = 2,234,816,323.67 × 557,181,350.99 - Step 4: Simplify right side
1,489,927,077.49x = 1,245,197,978,428,483,840 - Step 5: Solve for x
x = 1,245,197,978,428,483,840/1,489,927,077.49 - Step 6: Final answer
x = 835,744,243.62
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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.