Finding the Fourth Proportional to 20,582,212.24, 28,398,904.68 and 11,878,535.44
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Solution
The fourth proportional to 20,582,212.24, 28,398,904.68 and 11,878,535.44 is: 16,389,754.02
Step by Step Solution
- Step 1: Write the proportion equation
20,582,212.24 : 28,398,904.68 = 11,878,535.44 : x - Step 2: Convert to fraction form
20,582,212.24/28,398,904.68 = 11,878,535.44/x - Step 3: Cross multiply
20,582,212.24x = 28,398,904.68 × 11,878,535.44 - Step 4: Simplify right side
20,582,212.24x = 337,337,395,698,561.81 - Step 5: Solve for x
x = 337,337,395,698,561.81/20,582,212.24 - Step 6: Final answer
x = 16,389,754.02
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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.