Finding the Fourth Proportional to 80,830,117.80, 121,245,176.70 and 48,581,490.60
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Solution
The fourth proportional to 80,830,117.80, 121,245,176.70 and 48,581,490.60 is: 72,872,235.90
Step by Step Solution
- Step 1: Write the proportion equation
80,830,117.80 : 121,245,176.70 = 48,581,490.60 : x - Step 2: Convert to fraction form
80,830,117.80/121,245,176.70 = 48,581,490.60/x - Step 3: Cross multiply
80,830,117.80x = 121,245,176.70 × 48,581,490.60 - Step 4: Simplify right side
80,830,117.80x = 5,890,271,412,146,389 - Step 5: Solve for x
x = 5,890,271,412,146,389/80,830,117.80 - Step 6: Final answer
x = 72,872,235.90
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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.