Finding the Fourth Proportional to 30,318,891.18, 45,473,452.47 and 8,459,835.90
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Solution
The fourth proportional to 30,318,891.18, 45,473,452.47 and 8,459,835.90 is: 12,688,390.99
Step by Step Solution
- Step 1: Write the proportion equation
30,318,891.18 : 45,473,452.47 = 8,459,835.90 : x - Step 2: Convert to fraction form
30,318,891.18/45,473,452.47 = 8,459,835.90/x - Step 3: Cross multiply
30,318,891.18x = 45,473,452.47 × 8,459,835.90 - Step 4: Simplify right side
30,318,891.18x = 384,697,945,702,649.69 - Step 5: Solve for x
x = 384,697,945,702,649.69/30,318,891.18 - Step 6: Final answer
x = 12,688,390.99
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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.