Finding the Fourth Proportional to 12,850,405.47, 19,275,673.79 and 4,330,815.75
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Solution
The fourth proportional to 12,850,405.47, 19,275,673.79 and 4,330,815.75 is: 6,496,245.73
Step by Step Solution
- Step 1: Write the proportion equation
12,850,405.47 : 19,275,673.79 = 4,330,815.75 : x - Step 2: Convert to fraction form
12,850,405.47/19,275,673.79 = 4,330,815.75/x - Step 3: Cross multiply
12,850,405.47x = 19,275,673.79 × 4,330,815.75 - Step 4: Simplify right side
12,850,405.47x = 83,479,391,619,940.11 - Step 5: Solve for x
x = 83,479,391,619,940.11/12,850,405.47 - Step 6: Final answer
x = 6,496,245.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.