Finding the Fourth Proportional to 23,121,772.93, 31,908,071.62 and 12,525,187.68
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Solution
The fourth proportional to 23,121,772.93, 31,908,071.62 and 12,525,187.68 is: 17,284,772.53
Step by Step Solution
- Step 1: Write the proportion equation
23,121,772.93 : 31,908,071.62 = 12,525,187.68 : x - Step 2: Convert to fraction form
23,121,772.93/31,908,071.62 = 12,525,187.68/x - Step 3: Cross multiply
23,121,772.93x = 31,908,071.62 × 12,525,187.68 - Step 4: Simplify right side
23,121,772.93x = 399,654,585,662,424.94 - Step 5: Solve for x
x = 399,654,585,662,424.94/23,121,772.93 - Step 6: Final answer
x = 17,284,772.53
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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.