Finding the Fourth Proportional to 215,920,296.21, 297,660,095.97 and 153,933,017.97
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Solution
The fourth proportional to 215,920,296.21, 297,660,095.97 and 153,933,017.97 is: 212,206,623.03
Step by Step Solution
- Step 1: Write the proportion equation
215,920,296.21 : 297,660,095.97 = 153,933,017.97 : x - Step 2: Convert to fraction form
215,920,296.21/297,660,095.97 = 153,933,017.97/x - Step 3: Cross multiply
215,920,296.21x = 297,660,095.97 × 153,933,017.97 - Step 4: Simplify right side
215,920,296.21x = 45,819,716,901,901,936 - Step 5: Solve for x
x = 45,819,716,901,901,936/215,920,296.21 - Step 6: Final answer
x = 212,206,623.03
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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.