Finding the Fourth Proportional to 218,823,311.70, 328,234,967.55 and 167,804,975.70
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Solution
The fourth proportional to 218,823,311.70, 328,234,967.55 and 167,804,975.70 is: 251,707,463.55
Step by Step Solution
- Step 1: Write the proportion equation
218,823,311.70 : 328,234,967.55 = 167,804,975.70 : x - Step 2: Convert to fraction form
218,823,311.70/328,234,967.55 = 167,804,975.70/x - Step 3: Cross multiply
218,823,311.70x = 328,234,967.55 × 167,804,975.70 - Step 4: Simplify right side
218,823,311.70x = 55,079,460,753,618,040 - Step 5: Solve for x
x = 55,079,460,753,618,040/218,823,311.70 - Step 6: Final answer
x = 251,707,463.55
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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.