Finding the Fourth Proportional to 20,811,176.31, 31,219,741.52 and 6,435,352.81
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Solution
The fourth proportional to 20,811,176.31, 31,219,741.52 and 6,435,352.81 is: 9,653,949.80
Step by Step Solution
- Step 1: Write the proportion equation
20,811,176.31 : 31,219,741.52 = 6,435,352.81 : x - Step 2: Convert to fraction form
20,811,176.31/31,219,741.52 = 6,435,352.81/x - Step 3: Cross multiply
20,811,176.31x = 31,219,741.52 × 6,435,352.81 - Step 4: Simplify right side
20,811,176.31x = 200,910,051,318,205.66 - Step 5: Solve for x
x = 200,910,051,318,205.66/20,811,176.31 - Step 6: Final answer
x = 9,653,949.80
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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.