Finding the Fourth Proportional to 21,808,105.93, 30,095,305.68 and 12,514,937.05
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Solution
The fourth proportional to 21,808,105.93, 30,095,305.68 and 12,514,937.05 is: 17,270,681.70
Step by Step Solution
- Step 1: Write the proportion equation
21,808,105.93 : 30,095,305.68 = 12,514,937.05 : x - Step 2: Convert to fraction form
21,808,105.93/30,095,305.68 = 12,514,937.05/x - Step 3: Cross multiply
21,808,105.93x = 30,095,305.68 × 12,514,937.05 - Step 4: Simplify right side
21,808,105.93x = 376,640,856,085,707.44 - Step 5: Solve for x
x = 376,640,856,085,707.44/21,808,105.93 - Step 6: Final answer
x = 17,270,681.70
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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.