Finding the Fourth Proportional to 18,148,246.30, 27,222,369.45 and 9,078,319.90
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Solution
The fourth proportional to 18,148,246.30, 27,222,369.45 and 9,078,319.90 is: 13,617,479.85
Step by Step Solution
- Step 1: Write the proportion equation
18,148,246.30 : 27,222,369.45 = 9,078,319.90 : x - Step 2: Convert to fraction form
18,148,246.30/27,222,369.45 = 9,078,319.90/x - Step 3: Cross multiply
18,148,246.30x = 27,222,369.45 × 9,078,319.90 - Step 4: Simplify right side
18,148,246.30x = 247,133,378,303,087.06 - Step 5: Solve for x
x = 247,133,378,303,087.06/18,148,246.30 - Step 6: Final answer
x = 13,617,479.85
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1.5x scale
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.