Finding the Fourth Proportional to 12,419,363.98, 17,138,723.12 and 6,912,620.66
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Solution
The fourth proportional to 12,419,363.98, 17,138,723.12 and 6,912,620.66 is: 9,539,416.97
Step by Step Solution
- Step 1: Write the proportion equation
12,419,363.98 : 17,138,723.12 = 6,912,620.66 : x - Step 2: Convert to fraction form
12,419,363.98/17,138,723.12 = 6,912,620.66/x - Step 3: Cross multiply
12,419,363.98x = 17,138,723.12 × 6,912,620.66 - Step 4: Simplify right side
12,419,363.98x = 118,473,491,559,537.67 - Step 5: Solve for x
x = 118,473,491,559,537.67/12,419,363.98 - Step 6: Final answer
x = 9,539,416.97
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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.