Finding the Fourth Proportional to 31,085,514.70, 46,628,272.05 and 19,748,106.70
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Solution
The fourth proportional to 31,085,514.70, 46,628,272.05 and 19,748,106.70 is: 29,622,160.05
Step by Step Solution
- Step 1: Write the proportion equation
31,085,514.70 : 46,628,272.05 = 19,748,106.70 : x - Step 2: Convert to fraction form
31,085,514.70/46,628,272.05 = 19,748,106.70/x - Step 3: Cross multiply
31,085,514.70x = 46,628,272.05 × 19,748,106.70 - Step 4: Simplify right side
31,085,514.70x = 920,820,091,680,027.62 - Step 5: Solve for x
x = 920,820,091,680,027.62/31,085,514.70 - Step 6: Final answer
x = 29,622,160.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.