Finding the Fourth Proportional to 68,459,937.21, 102,723,120.95 and 30,116,469.15
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Solution
The fourth proportional to 68,459,937.21, 102,723,120.95 and 30,116,469.15 is: 45,189,315.52
Step by Step Solution
- Step 1: Write the proportion equation
68,459,937.21 : 102,723,120.95 = 30,116,469.15 : x - Step 2: Convert to fraction form
68,459,937.21/102,723,120.95 = 30,116,469.15/x - Step 3: Cross multiply
68,459,937.21x = 102,723,120.95 × 30,116,469.15 - Step 4: Simplify right side
68,459,937.21x = 3,093,657,702,931,811 - Step 5: Solve for x
x = 3,093,657,702,931,811/68,459,937.21 - Step 6: Final answer
x = 45,189,315.52
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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.