Finding the Fourth Proportional to 188,530,933.99, 260,168,608.96 and 109,149,342.59
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Solution
The fourth proportional to 188,530,933.99, 260,168,608.96 and 109,149,342.59 is: 150,623,730.71
Step by Step Solution
- Step 1: Write the proportion equation
188,530,933.99 : 260,168,608.96 = 109,149,342.59 : x - Step 2: Convert to fraction form
188,530,933.99/260,168,608.96 = 109,149,342.59/x - Step 3: Cross multiply
188,530,933.99x = 260,168,608.96 × 109,149,342.59 - Step 4: Simplify right side
188,530,933.99x = 28,397,232,630,916,332 - Step 5: Solve for x
x = 28,397,232,630,916,332/188,530,933.99 - Step 6: Final answer
x = 150,623,730.71
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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.