Finding the Fourth Proportional to 5,243,739.28, 7,236,372.04 and 2,920,613.12
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Solution
The fourth proportional to 5,243,739.28, 7,236,372.04 and 2,920,613.12 is: 4,030,452.70
Step by Step Solution
- Step 1: Write the proportion equation
5,243,739.28 : 7,236,372.04 = 2,920,613.12 : x - Step 2: Convert to fraction form
5,243,739.28/7,236,372.04 = 2,920,613.12/x - Step 3: Cross multiply
5,243,739.28x = 7,236,372.04 × 2,920,613.12 - Step 4: Simplify right side
5,243,739.28x = 21,134,643,121,225.16 - Step 5: Solve for x
x = 21,134,643,121,225.16/5,243,739.28 - Step 6: Final answer
x = 4,030,452.70
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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.