Finding the Fourth Proportional to 13,083,676.80, 19,625,515.20 and 12,495,811.20
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Solution
The fourth proportional to 13,083,676.80, 19,625,515.20 and 12,495,811.20 is: 18,743,716.80
Step by Step Solution
- Step 1: Write the proportion equation
13,083,676.80 : 19,625,515.20 = 12,495,811.20 : x - Step 2: Convert to fraction form
13,083,676.80/19,625,515.20 = 12,495,811.20/x - Step 3: Cross multiply
13,083,676.80x = 19,625,515.20 × 12,495,811.20 - Step 4: Simplify right side
13,083,676.80x = 245,236,732,641,930.22 - Step 5: Solve for x
x = 245,236,732,641,930.22/13,083,676.80 - Step 6: Final answer
x = 18,743,716.80
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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.