Finding the Fourth Proportional to 10,621,805.80, 15,932,708.70 and 3,438,494.95
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Solution
The fourth proportional to 10,621,805.80, 15,932,708.70 and 3,438,494.95 is: 5,157,742.43
Step by Step Solution
- Step 1: Write the proportion equation
10,621,805.80 : 15,932,708.70 = 3,438,494.95 : x - Step 2: Convert to fraction form
10,621,805.80/15,932,708.70 = 3,438,494.95/x - Step 3: Cross multiply
10,621,805.80x = 15,932,708.70 × 3,438,494.95 - Step 4: Simplify right side
10,621,805.80x = 54,784,538,404,771.06 - Step 5: Solve for x
x = 54,784,538,404,771.06/10,621,805.80 - Step 6: Final answer
x = 5,157,742.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.