Finding the Fourth Proportional to 18,087,490.80, 27,131,236.20 and 10,913,037.30
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Solution
The fourth proportional to 18,087,490.80, 27,131,236.20 and 10,913,037.30 is: 16,369,555.95
Step by Step Solution
- Step 1: Write the proportion equation
18,087,490.80 : 27,131,236.20 = 10,913,037.30 : x - Step 2: Convert to fraction form
18,087,490.80/27,131,236.20 = 10,913,037.30/x - Step 3: Cross multiply
18,087,490.80x = 27,131,236.20 × 10,913,037.30 - Step 4: Simplify right side
18,087,490.80x = 296,084,192,645,710.25 - Step 5: Solve for x
x = 296,084,192,645,710.25/18,087,490.80 - Step 6: Final answer
x = 16,369,555.95
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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.