Finding the Fourth Proportional to 308,685,933.60, 425,986,997.24 and 167,557,062.36
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Solution
The fourth proportional to 308,685,933.60, 425,986,997.24 and 167,557,062.36 is: 231,228,967.99
Step by Step Solution
- Step 1: Write the proportion equation
308,685,933.60 : 425,986,997.24 = 167,557,062.36 : x - Step 2: Convert to fraction form
308,685,933.60/425,986,997.24 = 167,557,062.36/x - Step 3: Cross multiply
308,685,933.60x = 425,986,997.24 × 167,557,062.36 - Step 4: Simplify right side
308,685,933.60x = 71,377,129,860,254,048 - Step 5: Solve for x
x = 71,377,129,860,254,048/308,685,933.60 - Step 6: Final answer
x = 231,228,967.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.