Finding the Fourth Proportional to 18,185,319.36, 27,274,937.76 and 6,668,406.72
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Solution
The fourth proportional to 18,185,319.36, 27,274,937.76 and 6,668,406.72 is: 10,001,494.87
Step by Step Solution
- Step 1: Write the proportion equation
18,185,319.36 : 27,274,937.76 = 6,668,406.72 : x - Step 2: Convert to fraction form
18,185,319.36/27,274,937.76 = 6,668,406.72/x - Step 3: Cross multiply
18,185,319.36x = 27,274,937.76 × 6,668,406.72 - Step 4: Simplify right side
18,185,319.36x = 181,880,378,246,365.75 - Step 5: Solve for x
x = 181,880,378,246,365.75/18,185,319.36 - Step 6: Final answer
x = 10,001,494.87
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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.