Finding the Fourth Proportional to 396,933,624.19, 547,768,855.51 and 220,717,836.13
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Solution
The fourth proportional to 396,933,624.19, 547,768,855.51 and 220,717,836.13 is: 304,590,866.38
Step by Step Solution
- Step 1: Write the proportion equation
396,933,624.19 : 547,768,855.51 = 220,717,836.13 : x - Step 2: Convert to fraction form
396,933,624.19/547,768,855.51 = 220,717,836.13/x - Step 3: Cross multiply
396,933,624.19x = 547,768,855.51 × 220,717,836.13 - Step 4: Simplify right side
396,933,624.19x = 120,902,356,487,573,824 - Step 5: Solve for x
x = 120,902,356,487,573,824/396,933,624.19 - Step 6: Final answer
x = 304,590,866.38
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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.