Finding the Fourth Proportional to 6,678,722.23, 9,216,639.62 and 3,778,051.03
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Solution
The fourth proportional to 6,678,722.23, 9,216,639.62 and 3,778,051.03 is: 5,213,712.09
Step by Step Solution
- Step 1: Write the proportion equation
6,678,722.23 : 9,216,639.62 = 3,778,051.03 : x - Step 2: Convert to fraction form
6,678,722.23/9,216,639.62 = 3,778,051.03/x - Step 3: Cross multiply
6,678,722.23x = 9,216,639.62 × 3,778,051.03 - Step 4: Simplify right side
6,678,722.23x = 34,820,934,809,479.80 - Step 5: Solve for x
x = 34,820,934,809,479.80/6,678,722.23 - Step 6: Final answer
x = 5,213,712.09
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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.