Finding the Fourth Proportional to 225,630,349.08, 311,341,116.36 and 131,520,949.97
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Solution
The fourth proportional to 225,630,349.08, 311,341,116.36 and 131,520,949.97 is: 181,482,143.49
Step by Step Solution
- Step 1: Write the proportion equation
225,630,349.08 : 311,341,116.36 = 131,520,949.97 : x - Step 2: Convert to fraction form
225,630,349.08/311,341,116.36 = 131,520,949.97/x - Step 3: Cross multiply
225,630,349.08x = 311,341,116.36 × 131,520,949.97 - Step 4: Simplify right side
225,630,349.08x = 40,947,879,387,324,008 - Step 5: Solve for x
x = 40,947,879,387,324,008/225,630,349.08 - Step 6: Final answer
x = 181,482,143.49
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1.5x scale
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.