Finding the Fourth Proportional to 19,782,486.30, 29,673,729.45 and 14,680,652.70
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Solution
The fourth proportional to 19,782,486.30, 29,673,729.45 and 14,680,652.70 is: 22,020,979.05
Step by Step Solution
- Step 1: Write the proportion equation
19,782,486.30 : 29,673,729.45 = 14,680,652.70 : x - Step 2: Convert to fraction form
19,782,486.30/29,673,729.45 = 14,680,652.70/x - Step 3: Cross multiply
19,782,486.30x = 29,673,729.45 × 14,680,652.70 - Step 4: Simplify right side
19,782,486.30x = 435,629,716,369,212 - Step 5: Solve for x
x = 435,629,716,369,212/19,782,486.30 - Step 6: Final answer
x = 22,020,979.05
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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.