Finding the Fourth Proportional to 20,672,374, 28,527,876.12 and 11,507,181.88
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Solution
The fourth proportional to 20,672,374, 28,527,876.12 and 11,507,181.88 is: 15,879,910.99
Step by Step Solution
- Step 1: Write the proportion equation
20,672,374 : 28,527,876.12 = 11,507,181.88 : x - Step 2: Convert to fraction form
20,672,374/28,527,876.12 = 11,507,181.88/x - Step 3: Cross multiply
20,672,374x = 28,527,876.12 × 11,507,181.88 - Step 4: Simplify right side
20,672,374x = 328,275,459,162,948.75 - Step 5: Solve for x
x = 328,275,459,162,948.75/20,672,374 - Step 6: Final answer
x = 15,879,910.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.