Finding the Fourth Proportional to 18,118,879.72, 27,178,319.52 and 6,605,210.44
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Solution
The fourth proportional to 18,118,879.72, 27,178,319.52 and 6,605,210.44 is: 9,907,815.64
Step by Step Solution
- Step 1: Write the proportion equation
18,118,879.72 : 27,178,319.52 = 6,605,210.44 : x - Step 2: Convert to fraction form
18,118,879.72/27,178,319.52 = 6,605,210.44/x - Step 3: Cross multiply
18,118,879.72x = 27,178,319.52 × 6,605,210.44 - Step 4: Simplify right side
18,118,879.72x = 179,518,519,835,159.81 - Step 5: Solve for x
x = 179,518,519,835,159.81/18,118,879.72 - Step 6: Final answer
x = 9,907,815.64
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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.