Finding the Fourth Proportional to 19,859,725.63, 29,789,544.61 and 5,286,648.43
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Solution
The fourth proportional to 19,859,725.63, 29,789,544.61 and 5,286,648.43 is: 7,929,960.98
Step by Step Solution
- Step 1: Write the proportion equation
19,859,725.63 : 29,789,544.61 = 5,286,648.43 : x - Step 2: Convert to fraction form
19,859,725.63/29,789,544.61 = 5,286,648.43/x - Step 3: Cross multiply
19,859,725.63x = 29,789,544.61 × 5,286,648.43 - Step 4: Simplify right side
19,859,725.63x = 157,486,849,242,871.44 - Step 5: Solve for x
x = 157,486,849,242,871.44/19,859,725.63 - Step 6: Final answer
x = 7,929,960.98
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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.