Finding the Fourth Proportional to 7,882,651.80, 11,823,977.70 and 4,640,861.70
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Solution
The fourth proportional to 7,882,651.80, 11,823,977.70 and 4,640,861.70 is: 6,961,292.55
Step by Step Solution
- Step 1: Write the proportion equation
7,882,651.80 : 11,823,977.70 = 4,640,861.70 : x - Step 2: Convert to fraction form
7,882,651.80/11,823,977.70 = 4,640,861.70/x - Step 3: Cross multiply
7,882,651.80x = 11,823,977.70 × 4,640,861.70 - Step 4: Simplify right side
7,882,651.80x = 54,873,445,249,584.09 - Step 5: Solve for x
x = 54,873,445,249,584.09/7,882,651.80 - Step 6: Final answer
x = 6,961,292.55
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1.5x scale
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.