Finding the Fourth Proportional to 13,466,121.26, 18,583,365.35 and 7,665,275.98
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Solution
The fourth proportional to 13,466,121.26, 18,583,365.35 and 7,665,275.98 is: 10,578,148.03
Step by Step Solution
- Step 1: Write the proportion equation
13,466,121.26 : 18,583,365.35 = 7,665,275.98 : x - Step 2: Convert to fraction form
13,466,121.26/18,583,365.35 = 7,665,275.98/x - Step 3: Cross multiply
13,466,121.26x = 18,583,365.35 × 7,665,275.98 - Step 4: Simplify right side
13,466,121.26x = 142,446,624,087,311.69 - Step 5: Solve for x
x = 142,446,624,087,311.69/13,466,121.26 - Step 6: Final answer
x = 10,578,148.03
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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.