Finding the Fourth Proportional to 5,566,639.25, 7,677,407.68 and 3,918,243.16
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Solution
The fourth proportional to 5,566,639.25, 7,677,407.68 and 3,918,243.16 is: 5,403,969.75
Step by Step Solution
- Step 1: Write the proportion equation
5,566,639.25 : 7,677,407.68 = 3,918,243.16 : x - Step 2: Convert to fraction form
5,566,639.25/7,677,407.68 = 3,918,243.16/x - Step 3: Cross multiply
5,566,639.25x = 7,677,407.68 × 3,918,243.16 - Step 4: Simplify right side
5,566,639.25x = 30,081,950,128,691.47 - Step 5: Solve for x
x = 30,081,950,128,691.47/5,566,639.25 - Step 6: Final answer
x = 5,403,969.75
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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.