Finding the Fourth Proportional to 5,211,726.57, 7,192,447.11 and 3,005,768.79
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Solution
The fourth proportional to 5,211,726.57, 7,192,447.11 and 3,005,768.79 is: 4,148,113.44
Step by Step Solution
- Step 1: Write the proportion equation
5,211,726.57 : 7,192,447.11 = 3,005,768.79 : x - Step 2: Convert to fraction form
5,211,726.57/7,192,447.11 = 3,005,768.79/x - Step 3: Cross multiply
5,211,726.57x = 7,192,447.11 × 3,005,768.79 - Step 4: Simplify right side
5,211,726.57x = 21,618,833,046,963.70 - Step 5: Solve for x
x = 21,618,833,046,963.70/5,211,726.57 - Step 6: Final answer
x = 4,148,113.44
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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.