Finding the Fourth Proportional to 21,325,859,463.97, 29,415,515,512.71 and 13,714,528,302.48
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Solution
The fourth proportional to 21,325,859,463.97, 29,415,515,512.71 and 13,714,528,302.48 is: 18,916,936,065.94
Step by Step Solution
- Step 1: Write the proportion equation
21,325,859,463.97 : 29,415,515,512.71 = 13,714,528,302.48 : x - Step 2: Convert to fraction form
21,325,859,463.97/29,415,515,512.71 = 13,714,528,302.48/x - Step 3: Cross multiply
21,325,859,463.97x = 29,415,515,512.71 × 13,714,528,302.48 - Step 4: Simplify right side
21,325,859,463.97x = 403,419,920,031,100,764,160 - Step 5: Solve for x
x = 403,419,920,031,100,764,160/21,325,859,463.97 - Step 6: Final answer
x = 18,916,936,065.94
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1.5x scale
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.