Finding the Fourth Proportional to 10,777,206.60, 16,165,809.90 and 9,997,759.80
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Solution
The fourth proportional to 10,777,206.60, 16,165,809.90 and 9,997,759.80 is: 14,996,639.70
Step by Step Solution
- Step 1: Write the proportion equation
10,777,206.60 : 16,165,809.90 = 9,997,759.80 : x - Step 2: Convert to fraction form
10,777,206.60/16,165,809.90 = 9,997,759.80/x - Step 3: Cross multiply
10,777,206.60x = 16,165,809.90 × 9,997,759.80 - Step 4: Simplify right side
10,777,206.60x = 161,621,884,352,662.03 - Step 5: Solve for x
x = 161,621,884,352,662.03/10,777,206.60 - Step 6: Final answer
x = 14,996,639.70
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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.