Finding the Fourth Proportional to 11,278,430.35, 15,561,565.50 and 6,383,651.79
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Solution
The fourth proportional to 11,278,430.35, 15,561,565.50 and 6,383,651.79 is: 8,807,929.15
Step by Step Solution
- Step 1: Write the proportion equation
11,278,430.35 : 15,561,565.50 = 6,383,651.79 : x - Step 2: Convert to fraction form
11,278,430.35/15,561,565.50 = 6,383,651.79/x - Step 3: Cross multiply
11,278,430.35x = 15,561,565.50 × 6,383,651.79 - Step 4: Simplify right side
11,278,430.35x = 99,339,615,459,277.25 - Step 5: Solve for x
x = 99,339,615,459,277.25/11,278,430.35 - Step 6: Final answer
x = 8,807,929.15
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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.