Finding the Fourth Proportional to 81,874,253.08, 112,973,132.73 and 48,379,071.25
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Solution
The fourth proportional to 81,874,253.08, 112,973,132.73 and 48,379,071.25 is: 66,755,237.84
Step by Step Solution
- Step 1: Write the proportion equation
81,874,253.08 : 112,973,132.73 = 48,379,071.25 : x - Step 2: Convert to fraction form
81,874,253.08/112,973,132.73 = 48,379,071.25/x - Step 3: Cross multiply
81,874,253.08x = 112,973,132.73 × 48,379,071.25 - Step 4: Simplify right side
81,874,253.08x = 5,465,535,237,680,377 - Step 5: Solve for x
x = 5,465,535,237,680,377/81,874,253.08 - Step 6: Final answer
x = 66,755,237.84
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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.