Finding the Fourth Proportional to 13,221,795.44, 18,246,115.69 and 7,341,442.39
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Solution
The fourth proportional to 13,221,795.44, 18,246,115.69 and 7,341,442.39 is: 10,131,211.59
Step by Step Solution
- Step 1: Write the proportion equation
13,221,795.44 : 18,246,115.69 = 7,341,442.39 : x - Step 2: Convert to fraction form
13,221,795.44/18,246,115.69 = 7,341,442.39/x - Step 3: Cross multiply
13,221,795.44x = 18,246,115.69 × 7,341,442.39 - Step 4: Simplify right side
13,221,795.44x = 133,952,807,183,864.14 - Step 5: Solve for x
x = 133,952,807,183,864.14/13,221,795.44 - Step 6: Final answer
x = 10,131,211.59
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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.