Finding the Fourth Proportional to 13,512,692.28, 18,647,525.40 and 7,317,787.08
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Solution
The fourth proportional to 13,512,692.28, 18,647,525.40 and 7,317,787.08 is: 10,098,551.61
Step by Step Solution
- Step 1: Write the proportion equation
13,512,692.28 : 18,647,525.40 = 7,317,787.08 : x - Step 2: Convert to fraction form
13,512,692.28/18,647,525.40 = 7,317,787.08/x - Step 3: Cross multiply
13,512,692.28x = 18,647,525.40 × 7,317,787.08 - Step 4: Simplify right side
13,512,692.28x = 136,458,620,446,091.83 - Step 5: Solve for x
x = 136,458,620,446,091.83/13,512,692.28 - Step 6: Final answer
x = 10,098,551.61
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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.