Finding the Fourth Proportional to 8,438,639.13, 11,645,378.10 and 4,571,160.48
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Solution
The fourth proportional to 8,438,639.13, 11,645,378.10 and 4,571,160.48 is: 6,308,231.85
Step by Step Solution
- Step 1: Write the proportion equation
8,438,639.13 : 11,645,378.10 = 4,571,160.48 : x - Step 2: Convert to fraction form
8,438,639.13/11,645,378.10 = 4,571,160.48/x - Step 3: Cross multiply
8,438,639.13x = 11,645,378.10 × 4,571,160.48 - Step 4: Simplify right side
8,438,639.13x = 53,232,892,145,377.49 - Step 5: Solve for x
x = 53,232,892,145,377.49/8,438,639.13 - Step 6: Final answer
x = 6,308,231.85
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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.