Finding the Fourth Proportional to 6,440,147.10, 8,887,299.89 and 3,539,475.70
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Solution
The fourth proportional to 6,440,147.10, 8,887,299.89 and 3,539,475.70 is: 4,884,419.79
Step by Step Solution
- Step 1: Write the proportion equation
6,440,147.10 : 8,887,299.89 = 3,539,475.70 : x - Step 2: Convert to fraction form
6,440,147.10/8,887,299.89 = 3,539,475.70/x - Step 3: Cross multiply
6,440,147.10x = 8,887,299.89 × 3,539,475.70 - Step 4: Simplify right side
6,440,147.10x = 31,456,381,959,352.04 - Step 5: Solve for x
x = 31,456,381,959,352.04/6,440,147.10 - Step 6: Final answer
x = 4,884,419.79
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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.