Finding the Fourth Proportional to 81,920,326.39, 113,045,513.21 and 44,743,204.51
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Solution
The fourth proportional to 81,920,326.39, 113,045,513.21 and 44,743,204.51 is: 61,743,144.09
Step by Step Solution
- Step 1: Write the proportion equation
81,920,326.39 : 113,045,513.21 = 44,743,204.51 : x - Step 2: Convert to fraction form
81,920,326.39/113,045,513.21 = 44,743,204.51/x - Step 3: Cross multiply
81,920,326.39x = 113,045,513.21 × 44,743,204.51 - Step 4: Simplify right side
81,920,326.39x = 5,058,018,516,492,936 - Step 5: Solve for x
x = 5,058,018,516,492,936/81,920,326.39 - Step 6: Final answer
x = 61,743,144.09
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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.