Finding the Fourth Proportional to 18,345,674.40, 27,518,511.60 and 4,698,794.40
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Solution
The fourth proportional to 18,345,674.40, 27,518,511.60 and 4,698,794.40 is: 7,048,191.60
Step by Step Solution
- Step 1: Write the proportion equation
18,345,674.40 : 27,518,511.60 = 4,698,794.40 : x - Step 2: Convert to fraction form
18,345,674.40/27,518,511.60 = 4,698,794.40/x - Step 3: Cross multiply
18,345,674.40x = 27,518,511.60 × 4,698,794.40 - Step 4: Simplify right side
18,345,674.40x = 129,303,828,202,415.06 - Step 5: Solve for x
x = 129,303,828,202,415.06/18,345,674.40 - Step 6: Final answer
x = 7,048,191.60
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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.