Finding the Fourth Proportional to 12,170,818.95, 18,266,365.17 and 6,415,619.10
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Solution
The fourth proportional to 12,170,818.95, 18,266,365.17 and 6,415,619.10 is: 9,628,772.05
Step by Step Solution
- Step 1: Write the proportion equation
12,170,818.95 : 18,266,365.17 = 6,415,619.10 : x - Step 2: Convert to fraction form
12,170,818.95/18,266,365.17 = 6,415,619.10/x - Step 3: Cross multiply
12,170,818.95x = 18,266,365.17 × 6,415,619.10 - Step 4: Simplify right side
12,170,818.95x = 117,190,041,272,226.75 - Step 5: Solve for x
x = 117,190,041,272,226.75/12,170,818.95 - Step 6: Final answer
x = 9,628,772.05
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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.