Finding the Fourth Proportional to 6,290,974.23, 8,684,467.29 and 4,742,862.54
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Solution
The fourth proportional to 6,290,974.23, 8,684,467.29 and 4,742,862.54 is: 6,547,353.89
Step by Step Solution
- Step 1: Write the proportion equation
6,290,974.23 : 8,684,467.29 = 4,742,862.54 : x - Step 2: Convert to fraction form
6,290,974.23/8,684,467.29 = 4,742,862.54/x - Step 3: Cross multiply
6,290,974.23x = 8,684,467.29 × 4,742,862.54 - Step 4: Simplify right side
6,290,974.23x = 41,189,234,589,596.31 - Step 5: Solve for x
x = 41,189,234,589,596.31/6,290,974.23 - Step 6: Final answer
x = 6,547,353.89
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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.