Finding the Fourth Proportional to 21,351,994.31, 32,021,367.41 and 7,703,366.41
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Solution
The fourth proportional to 21,351,994.31, 32,021,367.41 and 7,703,366.41 is: 11,552,659.79
Step by Step Solution
- Step 1: Write the proportion equation
21,351,994.31 : 32,021,367.41 = 7,703,366.41 : x - Step 2: Convert to fraction form
21,351,994.31/32,021,367.41 = 7,703,366.41/x - Step 3: Cross multiply
21,351,994.31x = 32,021,367.41 × 7,703,366.41 - Step 4: Simplify right side
21,351,994.31x = 246,672,326,108,462.72 - Step 5: Solve for x
x = 246,672,326,108,462.72/21,351,994.31 - Step 6: Final answer
x = 11,552,659.79
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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.