Finding the Fourth Proportional to 122,868,621.06, 169,557,550.80 and 67,114,020.12
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Solution
The fourth proportional to 122,868,621.06, 169,557,550.80 and 67,114,020.12 is: 92,616,721.65
Step by Step Solution
- Step 1: Write the proportion equation
122,868,621.06 : 169,557,550.80 = 67,114,020.12 : x - Step 2: Convert to fraction form
122,868,621.06/169,557,550.80 = 67,114,020.12/x - Step 3: Cross multiply
122,868,621.06x = 169,557,550.80 × 67,114,020.12 - Step 4: Simplify right side
122,868,621.06x = 11,379,688,876,432,330 - Step 5: Solve for x
x = 11,379,688,876,432,330/122,868,621.06 - Step 6: Final answer
x = 92,616,721.65
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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.