Finding the Fourth Proportional to 7,479,779.12, 10,321,954.94 and 4,216,596.08
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Solution
The fourth proportional to 7,479,779.12, 10,321,954.94 and 4,216,596.08 is: 5,818,823.52
Step by Step Solution
- Step 1: Write the proportion equation
7,479,779.12 : 10,321,954.94 = 4,216,596.08 : x - Step 2: Convert to fraction form
7,479,779.12/10,321,954.94 = 4,216,596.08/x - Step 3: Cross multiply
7,479,779.12x = 10,321,954.94 × 4,216,596.08 - Step 4: Simplify right side
7,479,779.12x = 43,523,514,696,872.36 - Step 5: Solve for x
x = 43,523,514,696,872.36/7,479,779.12 - Step 6: Final answer
x = 5,818,823.52
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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.