Finding the Fourth Proportional to 744,213,910.84, 1,116,235,688.10 and 198,997,960.12
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Solution
The fourth proportional to 744,213,910.84, 1,116,235,688.10 and 198,997,960.12 is: 298,474,164.09
Step by Step Solution
- Step 1: Write the proportion equation
744,213,910.84 : 1,116,235,688.10 = 198,997,960.12 : x - Step 2: Convert to fraction form
744,213,910.84/1,116,235,688.10 = 198,997,960.12/x - Step 3: Cross multiply
744,213,910.84x = 1,116,235,688.10 × 198,997,960.12 - Step 4: Simplify right side
744,213,910.84x = 222,128,624,945,044,544 - Step 5: Solve for x
x = 222,128,624,945,044,544/744,213,910.84 - Step 6: Final answer
x = 298,474,164.09
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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.