Finding the Fourth Proportional to 19,646,639.93, 26,915,992.71 and 18,910,289.18
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Solution
The fourth proportional to 19,646,639.93, 26,915,992.71 and 18,910,289.18 is: 25,907,188.58
Step by Step Solution
- Step 1: Write the proportion equation
19,646,639.93 : 26,915,992.71 = 18,910,289.18 : x - Step 2: Convert to fraction form
19,646,639.93/26,915,992.71 = 18,910,289.18/x - Step 3: Cross multiply
19,646,639.93x = 26,915,992.71 × 18,910,289.18 - Step 4: Simplify right side
19,646,639.93x = 508,989,205,578,291.94 - Step 5: Solve for x
x = 508,989,205,578,291.94/19,646,639.93 - Step 6: Final answer
x = 25,907,188.58
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.