Finding the Fourth Proportional to 22,476,979.88, 31,018,326.80 and 12,163,703.48
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Solution
The fourth proportional to 22,476,979.88, 31,018,326.80 and 12,163,703.48 is: 16,785,961.98
Step by Step Solution
- Step 1: Write the proportion equation
22,476,979.88 : 31,018,326.80 = 12,163,703.48 : x - Step 2: Convert to fraction form
22,476,979.88/31,018,326.80 = 12,163,703.48/x - Step 3: Cross multiply
22,476,979.88x = 31,018,326.80 × 12,163,703.48 - Step 4: Simplify right side
22,476,979.88x = 377,297,729,640,937.31 - Step 5: Solve for x
x = 377,297,729,640,937.31/22,476,979.88 - Step 6: Final answer
x = 16,785,961.98
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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.