Finding the Fourth Proportional to 10,971,163.80, 15,139,307.52 and 6,261,536.07
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Solution
The fourth proportional to 10,971,163.80, 15,139,307.52 and 6,261,536.07 is: 8,640,406.96
Step by Step Solution
- Step 1: Write the proportion equation
10,971,163.80 : 15,139,307.52 = 6,261,536.07 : x - Step 2: Convert to fraction form
10,971,163.80/15,139,307.52 = 6,261,536.07/x - Step 3: Cross multiply
10,971,163.80x = 15,139,307.52 × 6,261,536.07 - Step 4: Simplify right side
10,971,163.80x = 94,795,320,111,302.25 - Step 5: Solve for x
x = 94,795,320,111,302.25/10,971,163.80 - Step 6: Final answer
x = 8,640,406.96
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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.