Finding the Fourth Proportional to 6,315,830.94, 8,715,898.81 and 3,486,968.65
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Solution
The fourth proportional to 6,315,830.94, 8,715,898.81 and 3,486,968.65 is: 4,812,045.51
Step by Step Solution
- Step 1: Write the proportion equation
6,315,830.94 : 8,715,898.81 = 3,486,968.65 : x - Step 2: Convert to fraction form
6,315,830.94/8,715,898.81 = 3,486,968.65/x - Step 3: Cross multiply
6,315,830.94x = 8,715,898.81 × 3,486,968.65 - Step 4: Simplify right side
6,315,830.94x = 30,392,065,907,042.31 - Step 5: Solve for x
x = 30,392,065,907,042.31/6,315,830.94 - Step 6: Final answer
x = 4,812,045.51
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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.