Finding the Fourth Proportional to 14,279,324,135.70, 21,418,986,203.55 and 12,728,366,721.30
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Solution
The fourth proportional to 14,279,324,135.70, 21,418,986,203.55 and 12,728,366,721.30 is: 19,092,550,081.95
Step by Step Solution
- Step 1: Write the proportion equation
14,279,324,135.70 : 21,418,986,203.55 = 12,728,366,721.30 : x - Step 2: Convert to fraction form
14,279,324,135.70/21,418,986,203.55 = 12,728,366,721.30/x - Step 3: Cross multiply
14,279,324,135.70x = 21,418,986,203.55 × 12,728,366,721.30 - Step 4: Simplify right side
14,279,324,135.70x = 272,628,711,197,249,634,304 - Step 5: Solve for x
x = 272,628,711,197,249,634,304/14,279,324,135.70 - Step 6: Final answer
x = 19,092,550,081.95
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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.