Finding the Fourth Proportional to 6,489,674.44, 8,956,948.80 and 4,169,467.40
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Solution
The fourth proportional to 6,489,674.44, 8,956,948.80 and 4,169,467.40 is: 5,754,634.75
Step by Step Solution
- Step 1: Write the proportion equation
6,489,674.44 : 8,956,948.80 = 4,169,467.40 : x - Step 2: Convert to fraction form
6,489,674.44/8,956,948.80 = 4,169,467.40/x - Step 3: Cross multiply
6,489,674.44x = 8,956,948.80 × 4,169,467.40 - Step 4: Simplify right side
6,489,674.44x = 37,345,706,025,069.12 - Step 5: Solve for x
x = 37,345,706,025,069.12/6,489,674.44 - Step 6: Final answer
x = 5,754,634.75
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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.