Finding the Fourth Proportional to 18,786,989.97, 25,926,145.74 and 10,527,070.05
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Solution
The fourth proportional to 18,786,989.97, 25,926,145.74 and 10,527,070.05 is: 14,527,412.47
Step by Step Solution
- Step 1: Write the proportion equation
18,786,989.97 : 25,926,145.74 = 10,527,070.05 : x - Step 2: Convert to fraction form
18,786,989.97/25,926,145.74 = 10,527,070.05/x - Step 3: Cross multiply
18,786,989.97x = 25,926,145.74 × 10,527,070.05 - Step 4: Simplify right side
18,786,989.97x = 272,926,352,331,489.09 - Step 5: Solve for x
x = 272,926,352,331,489.09/18,786,989.97 - Step 6: Final answer
x = 14,527,412.47
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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.