Finding the Fourth Proportional to 57,622,861.12, 79,521,441.84 and 31,517,378.08
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Solution
The fourth proportional to 57,622,861.12, 79,521,441.84 and 31,517,378.08 is: 43,495,017.42
Step by Step Solution
- Step 1: Write the proportion equation
57,622,861.12 : 79,521,441.84 = 31,517,378.08 : x - Step 2: Convert to fraction form
57,622,861.12/79,521,441.84 = 31,517,378.08/x - Step 3: Cross multiply
57,622,861.12x = 79,521,441.84 × 31,517,378.08 - Step 4: Simplify right side
57,622,861.12x = 2,506,307,347,938,011 - Step 5: Solve for x
x = 2,506,307,347,938,011/57,622,861.12 - Step 6: Final answer
x = 43,495,017.42
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.