Finding the Fourth Proportional to 31,765,840.15, 47,528,517.61 and 18,818,939.60
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Solution
The fourth proportional to 31,765,840.15, 47,528,517.61 and 18,818,939.60 is: 28,157,174.44
Step by Step Solution
- Step 1: Write the proportion equation
31,765,840.15 : 47,528,517.61 = 18,818,939.60 : x - Step 2: Convert to fraction form
31,765,840.15/47,528,517.61 = 18,818,939.60/x - Step 3: Cross multiply
31,765,840.15x = 47,528,517.61 × 18,818,939.60 - Step 4: Simplify right side
31,765,840.15x = 894,436,302,086,031.62 - Step 5: Solve for x
x = 894,436,302,086,031.62/31,765,840.15 - Step 6: Final answer
x = 28,157,174.44
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.