Finding the Fourth Proportional to 4,919,949.41, 7,382,055.36 and 2,642,816.79
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Solution
The fourth proportional to 4,919,949.41, 7,382,055.36 and 2,642,816.79 is: 3,965,370.02
Step by Step Solution
- Step 1: Write the proportion equation
4,919,949.41 : 7,382,055.36 = 2,642,816.79 : x - Step 2: Convert to fraction form
4,919,949.41/7,382,055.36 = 2,642,816.79/x - Step 3: Cross multiply
4,919,949.41x = 7,382,055.36 × 2,642,816.79 - Step 4: Simplify right side
4,919,949.41x = 19,509,419,850,117.50 - Step 5: Solve for x
x = 19,509,419,850,117.50/4,919,949.41 - Step 6: Final answer
x = 3,965,370.02
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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.