Finding the Fourth Proportional to 15,888,021.39, 21,926,197.76 and 8,823,646.95
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Solution
The fourth proportional to 15,888,021.39, 21,926,197.76 and 8,823,646.95 is: 12,177,037.23
Step by Step Solution
- Step 1: Write the proportion equation
15,888,021.39 : 21,926,197.76 = 8,823,646.95 : x - Step 2: Convert to fraction form
15,888,021.39/21,926,197.76 = 8,823,646.95/x - Step 3: Cross multiply
15,888,021.39x = 21,926,197.76 × 8,823,646.95 - Step 4: Simplify right side
15,888,021.39x = 193,469,027,990,120.84 - Step 5: Solve for x
x = 193,469,027,990,120.84/15,888,021.39 - Step 6: Final answer
x = 12,177,037.23
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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.