Finding the Fourth Proportional to 81,772,840.11, 112,846,872.72 and 44,603,918.08
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Solution
The fourth proportional to 81,772,840.11, 112,846,872.72 and 44,603,918.08 is: 61,553,599.70
Step by Step Solution
- Step 1: Write the proportion equation
81,772,840.11 : 112,846,872.72 = 44,603,918.08 : x - Step 2: Convert to fraction form
81,772,840.11/112,846,872.72 = 44,603,918.08/x - Step 3: Cross multiply
81,772,840.11x = 112,846,872.72 × 44,603,918.08 - Step 4: Simplify right side
81,772,840.11x = 5,033,412,666,621,209 - Step 5: Solve for x
x = 5,033,412,666,621,209/81,772,840.11 - Step 6: Final answer
x = 61,553,599.70
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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.