Finding the Fourth Proportional to 6,885,890.10, 10,319,977.80 and 4,187,350.80
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Solution
The fourth proportional to 6,885,890.10, 10,319,977.80 and 4,187,350.80 is: 6,275,639.99
Step by Step Solution
- Step 1: Write the proportion equation
6,885,890.10 : 10,319,977.80 = 4,187,350.80 : x - Step 2: Convert to fraction form
6,885,890.10/10,319,977.80 = 4,187,350.80/x - Step 3: Cross multiply
6,885,890.10x = 10,319,977.80 × 4,187,350.80 - Step 4: Simplify right side
6,885,890.10x = 43,213,367,296,812.24 - Step 5: Solve for x
x = 43,213,367,296,812.24/6,885,890.10 - Step 6: Final answer
x = 6,275,639.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.