Finding the Fourth Proportional to 80,773,855.80, 121,160,783.70 and 48,525,228.60
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Solution
The fourth proportional to 80,773,855.80, 121,160,783.70 and 48,525,228.60 is: 72,787,842.90
Step by Step Solution
- Step 1: Write the proportion equation
80,773,855.80 : 121,160,783.70 = 48,525,228.60 : x - Step 2: Convert to fraction form
80,773,855.80/121,160,783.70 = 48,525,228.60/x - Step 3: Cross multiply
80,773,855.80x = 121,160,783.70 × 48,525,228.60 - Step 4: Simplify right side
80,773,855.80x = 5,879,354,726,397,654 - Step 5: Solve for x
x = 5,879,354,726,397,654/80,773,855.80 - Step 6: Final answer
x = 72,787,842.90
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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.