Finding the Fourth Proportional to 21,482,683,326.78, 29,644,767,213.20 and 11,836,873,506.70
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Solution
The fourth proportional to 21,482,683,326.78, 29,644,767,213.20 and 11,836,873,506.70 is: 16,334,149,430.99
Step by Step Solution
- Step 1: Write the proportion equation
21,482,683,326.78 : 29,644,767,213.20 = 11,836,873,506.70 : x - Step 2: Convert to fraction form
21,482,683,326.78/29,644,767,213.20 = 11,836,873,506.70/x - Step 3: Cross multiply
21,482,683,326.78x = 29,644,767,213.20 × 11,836,873,506.70 - Step 4: Simplify right side
21,482,683,326.78x = 350,901,359,638,215,917,568 - Step 5: Solve for x
x = 350,901,359,638,215,917,568/21,482,683,326.78 - Step 6: Final answer
x = 16,334,149,430.99
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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.