Finding the Fourth Proportional to 11,192,628.80, 16,788,943.20 and 9,869,931.20
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Solution
The fourth proportional to 11,192,628.80, 16,788,943.20 and 9,869,931.20 is: 14,804,896.80
Step by Step Solution
- Step 1: Write the proportion equation
11,192,628.80 : 16,788,943.20 = 9,869,931.20 : x - Step 2: Convert to fraction form
11,192,628.80/16,788,943.20 = 9,869,931.20/x - Step 3: Cross multiply
11,192,628.80x = 16,788,943.20 × 9,869,931.20 - Step 4: Simplify right side
11,192,628.80x = 165,705,714,304,707.81 - Step 5: Solve for x
x = 165,705,714,304,707.81/11,192,628.80 - Step 6: Final answer
x = 14,804,896.80
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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.