Finding the Fourth Proportional to 21,325,859,465.97, 29,415,515,515.47 and 13,714,528,304.48
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Solution
The fourth proportional to 21,325,859,465.97, 29,415,515,515.47 and 13,714,528,304.48 is: 18,916,936,068.70
Step by Step Solution
- Step 1: Write the proportion equation
21,325,859,465.97 : 29,415,515,515.47 = 13,714,528,304.48 : x - Step 2: Convert to fraction form
21,325,859,465.97/29,415,515,515.47 = 13,714,528,304.48/x - Step 3: Cross multiply
21,325,859,465.97x = 29,415,515,515.47 × 13,714,528,304.48 - Step 4: Simplify right side
21,325,859,465.97x = 403,419,920,127,783,927,808 - Step 5: Solve for x
x = 403,419,920,127,783,927,808/21,325,859,465.97 - Step 6: Final answer
x = 18,916,936,068.70
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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.