Finding the Fourth Proportional to 21,257,823.42, 29,336,726.61 and 11,965,993.02
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Solution
The fourth proportional to 21,257,823.42, 29,336,726.61 and 11,965,993.02 is: 16,513,594.03
Step by Step Solution
- Step 1: Write the proportion equation
21,257,823.42 : 29,336,726.61 = 11,965,993.02 : x - Step 2: Convert to fraction form
21,257,823.42/29,336,726.61 = 11,965,993.02/x - Step 3: Cross multiply
21,257,823.42x = 29,336,726.61 × 11,965,993.02 - Step 4: Simplify right side
21,257,823.42x = 351,043,065,844,908.25 - Step 5: Solve for x
x = 351,043,065,844,908.25/21,257,823.42 - Step 6: Final answer
x = 16,513,594.03
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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.