Finding the Fourth Proportional to 136,593,912.08, 188,495,590.92 and 74,712,912.32
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Solution
The fourth proportional to 136,593,912.08, 188,495,590.92 and 74,712,912.32 is: 103,101,626.88
Step by Step Solution
- Step 1: Write the proportion equation
136,593,912.08 : 188,495,590.92 = 74,712,912.32 : x - Step 2: Convert to fraction form
136,593,912.08/188,495,590.92 = 74,712,912.32/x - Step 3: Cross multiply
136,593,912.08x = 188,495,590.92 × 74,712,912.32 - Step 4: Simplify right side
136,593,912.08x = 14,083,054,557,112,546 - Step 5: Solve for x
x = 14,083,054,557,112,546/136,593,912.08 - Step 6: Final answer
x = 103,101,626.88
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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.