Finding the Fourth Proportional to 1,166,933,998.65, 1,610,373,736.73 and 631,085,651.99
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Solution
The fourth proportional to 1,166,933,998.65, 1,610,373,736.73 and 631,085,651.99 is: 870,900,805.66
Step by Step Solution
- Step 1: Write the proportion equation
1,166,933,998.65 : 1,610,373,736.73 = 631,085,651.99 : x - Step 2: Convert to fraction form
1,166,933,998.65/1,610,373,736.73 = 631,085,651.99/x - Step 3: Cross multiply
1,166,933,998.65x = 1,610,373,736.73 × 631,085,651.99 - Step 4: Simplify right side
1,166,933,998.65x = 1,016,283,759,580,617,344 - Step 5: Solve for x
x = 1,016,283,759,580,617,344/1,166,933,998.65 - Step 6: Final answer
x = 870,900,805.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.