Finding the Fourth Proportional to 20,345,675.99, 28,077,066.18 and 11,053,282.55
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Solution
The fourth proportional to 20,345,675.99, 28,077,066.18 and 11,053,282.55 is: 15,253,548.01
Step by Step Solution
- Step 1: Write the proportion equation
20,345,675.99 : 28,077,066.18 = 11,053,282.55 : x - Step 2: Convert to fraction form
20,345,675.99/28,077,066.18 = 11,053,282.55/x - Step 3: Cross multiply
20,345,675.99x = 28,077,066.18 × 11,053,282.55 - Step 4: Simplify right side
20,345,675.99x = 310,343,745,522,203.81 - Step 5: Solve for x
x = 310,343,745,522,203.81/20,345,675.99 - Step 6: Final answer
x = 15,253,548.01
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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.