Finding the Fourth Proportional to 154,525,793,921.80, 231,788,690,882.70 and 129,730,882,625.80
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Solution
The fourth proportional to 154,525,793,921.80, 231,788,690,882.70 and 129,730,882,625.80 is: 194,596,323,938.70
Step by Step Solution
- Step 1: Write the proportion equation
154,525,793,921.80 : 231,788,690,882.70 = 129,730,882,625.80 : x - Step 2: Convert to fraction form
154,525,793,921.80/231,788,690,882.70 = 129,730,882,625.80/x - Step 3: Cross multiply
154,525,793,921.80x = 231,788,690,882.70 × 129,730,882,625.80 - Step 4: Simplify right side
154,525,793,921.80x = 30,070,151,450,891,393,171,456 - Step 5: Solve for x
x = 30,070,151,450,891,393,171,456/154,525,793,921.80 - Step 6: Final answer
x = 194,596,323,938.70
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1.5x scale
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.