Finding the Fourth Proportional to 15,307,322.93, 21,124,106.78 and 8,431,804.99
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Solution
The fourth proportional to 15,307,322.93, 21,124,106.78 and 8,431,804.99 is: 11,635,891.51
Step by Step Solution
- Step 1: Write the proportion equation
15,307,322.93 : 21,124,106.78 = 8,431,804.99 : x - Step 2: Convert to fraction form
15,307,322.93/21,124,106.78 = 8,431,804.99/x - Step 3: Cross multiply
15,307,322.93x = 21,124,106.78 × 8,431,804.99 - Step 4: Simplify right side
15,307,322.93x = 178,114,348,893,546.81 - Step 5: Solve for x
x = 178,114,348,893,546.81/15,307,322.93 - Step 6: Final answer
x = 11,635,891.51
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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.