Finding the Fourth Proportional to 22,278,640.66, 30,746,364.63 and 12,358,721.64
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Solution
The fourth proportional to 22,278,640.66, 30,746,364.63 and 12,358,721.64 is: 17,056,056.87
Step by Step Solution
- Step 1: Write the proportion equation
22,278,640.66 : 30,746,364.63 = 12,358,721.64 : x - Step 2: Convert to fraction form
22,278,640.66/30,746,364.63 = 12,358,721.64/x - Step 3: Cross multiply
22,278,640.66x = 30,746,364.63 × 12,358,721.64 - Step 4: Simplify right side
22,278,640.66x = 379,985,761,904,111.62 - Step 5: Solve for x
x = 379,985,761,904,111.62/22,278,640.66 - Step 6: Final answer
x = 17,056,056.87
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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.