Finding the Fourth Proportional to 7,801,859.80, 11,702,789.70 and 6,857,075.80
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Solution
The fourth proportional to 7,801,859.80, 11,702,789.70 and 6,857,075.80 is: 10,285,613.70
Step by Step Solution
- Step 1: Write the proportion equation
7,801,859.80 : 11,702,789.70 = 6,857,075.80 : x - Step 2: Convert to fraction form
7,801,859.80/11,702,789.70 = 6,857,075.80/x - Step 3: Cross multiply
7,801,859.80x = 11,702,789.70 × 6,857,075.80 - Step 4: Simplify right side
7,801,859.80x = 80,246,916,044,359.25 - Step 5: Solve for x
x = 80,246,916,044,359.25/7,801,859.80 - Step 6: Final answer
x = 10,285,613.70
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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.