Finding the Fourth Proportional to 38,274,806.48, 52,817,319.68 and 21,752,748.65
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Solution
The fourth proportional to 38,274,806.48, 52,817,319.68 and 21,752,748.65 is: 30,017,705.78
Step by Step Solution
- Step 1: Write the proportion equation
38,274,806.48 : 52,817,319.68 = 21,752,748.65 : x - Step 2: Convert to fraction form
38,274,806.48/52,817,319.68 = 21,752,748.65/x - Step 3: Cross multiply
38,274,806.48x = 52,817,319.68 × 21,752,748.65 - Step 4: Simplify right side
38,274,806.48x = 1,148,921,879,389,018 - Step 5: Solve for x
x = 1,148,921,879,389,018/38,274,806.48 - Step 6: Final answer
x = 30,017,705.78
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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.