Finding the Fourth Proportional to 11,398,447.90, 15,729,385.71 and 6,241,720.60
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Solution
The fourth proportional to 11,398,447.90, 15,729,385.71 and 6,241,720.60 is: 8,613,315.75
Step by Step Solution
- Step 1: Write the proportion equation
11,398,447.90 : 15,729,385.71 = 6,241,720.60 : x - Step 2: Convert to fraction form
11,398,447.90/15,729,385.71 = 6,241,720.60/x - Step 3: Cross multiply
11,398,447.90x = 15,729,385.71 × 6,241,720.60 - Step 4: Simplify right side
11,398,447.90x = 98,178,430,811,452.62 - Step 5: Solve for x
x = 98,178,430,811,452.62/11,398,447.90 - Step 6: Final answer
x = 8,613,315.75
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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.