Finding the Fourth Proportional to 12,611,165.81, 17,399,808.25 and 7,102,613.99
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Solution
The fourth proportional to 12,611,165.81, 17,399,808.25 and 7,102,613.99 is: 9,799,579.47
Step by Step Solution
- Step 1: Write the proportion equation
12,611,165.81 : 17,399,808.25 = 7,102,613.99 : x - Step 2: Convert to fraction form
12,611,165.81/17,399,808.25 = 7,102,613.99/x - Step 3: Cross multiply
12,611,165.81x = 17,399,808.25 × 7,102,613.99 - Step 4: Simplify right side
12,611,165.81x = 123,584,121,525,510.39 - Step 5: Solve for x
x = 123,584,121,525,510.39/12,611,165.81 - Step 6: Final answer
x = 9,799,579.47
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1.5x scale
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.