Finding the Fourth Proportional to 12,498,017.41, 17,246,449.78 and 6,990,436.99
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Solution
The fourth proportional to 12,498,017.41, 17,246,449.78 and 6,990,436.99 is: 9,646,347.62
Step by Step Solution
- Step 1: Write the proportion equation
12,498,017.41 : 17,246,449.78 = 6,990,436.99 : x - Step 2: Convert to fraction form
12,498,017.41/17,246,449.78 = 6,990,436.99/x - Step 3: Cross multiply
12,498,017.41x = 17,246,449.78 × 6,990,436.99 - Step 4: Simplify right side
12,498,017.41x = 120,560,220,531,692.53 - Step 5: Solve for x
x = 120,560,220,531,692.53/12,498,017.41 - Step 6: Final answer
x = 9,646,347.62
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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.