Finding the Fourth Proportional to 14,470,684.95, 19,969,779.20 and 7,944,915.99
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Solution
The fourth proportional to 14,470,684.95, 19,969,779.20 and 7,944,915.99 is: 10,964,112.52
Step by Step Solution
- Step 1: Write the proportion equation
14,470,684.95 : 19,969,779.20 = 7,944,915.99 : x - Step 2: Convert to fraction form
14,470,684.95/19,969,779.20 = 7,944,915.99/x - Step 3: Cross multiply
14,470,684.95x = 19,969,779.20 × 7,944,915.99 - Step 4: Simplify right side
14,470,684.95x = 158,658,218,082,849.41 - Step 5: Solve for x
x = 158,658,218,082,849.41/14,470,684.95 - Step 6: Final answer
x = 10,964,112.52
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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.