Finding the Fourth Proportional to 13,205,932.84, 18,217,480.26 and 8,624,935.72
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Solution
The fourth proportional to 13,205,932.84, 18,217,480.26 and 8,624,935.72 is: 11,898,030.84
Step by Step Solution
- Step 1: Write the proportion equation
13,205,932.84 : 18,217,480.26 = 8,624,935.72 : x - Step 2: Convert to fraction form
13,205,932.84/18,217,480.26 = 8,624,935.72/x - Step 3: Cross multiply
13,205,932.84x = 18,217,480.26 × 8,624,935.72 - Step 4: Simplify right side
13,205,932.84x = 157,124,596,222,868.91 - Step 5: Solve for x
x = 157,124,596,222,868.91/13,205,932.84 - Step 6: Final answer
x = 11,898,030.84
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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.