Finding the Fourth Proportional to 12,163,465.55, 16,785,588.99 and 6,656,837.18
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Solution
The fourth proportional to 12,163,465.55, 16,785,588.99 and 6,656,837.18 is: 9,186,438.88
Step by Step Solution
- Step 1: Write the proportion equation
12,163,465.55 : 16,785,588.99 = 6,656,837.18 : x - Step 2: Convert to fraction form
12,163,465.55/16,785,588.99 = 6,656,837.18/x - Step 3: Cross multiply
12,163,465.55x = 16,785,588.99 × 6,656,837.18 - Step 4: Simplify right side
12,163,465.55x = 111,738,932,792,902.69 - Step 5: Solve for x
x = 111,738,932,792,902.69/12,163,465.55 - Step 6: Final answer
x = 9,186,438.88
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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.