Finding the Fourth Proportional to 8,103,628.18, 11,182,589.49 and 4,431,830.14
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Solution
The fourth proportional to 8,103,628.18, 11,182,589.49 and 4,431,830.14 is: 6,115,697.32
Step by Step Solution
- Step 1: Write the proportion equation
8,103,628.18 : 11,182,589.49 = 4,431,830.14 : x - Step 2: Convert to fraction form
8,103,628.18/11,182,589.49 = 4,431,830.14/x - Step 3: Cross multiply
8,103,628.18x = 11,182,589.49 × 4,431,830.14 - Step 4: Simplify right side
8,103,628.18x = 49,559,337,145,029.23 - Step 5: Solve for x
x = 49,559,337,145,029.23/8,103,628.18 - Step 6: Final answer
x = 6,115,697.32
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1.5x scale
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.