Finding the Fourth Proportional to 7,688,880.12, 11,529,770.16 and 2,829,966.12
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Solution
The fourth proportional to 7,688,880.12, 11,529,770.16 and 2,829,966.12 is: 4,243,642.56
Step by Step Solution
- Step 1: Write the proportion equation
7,688,880.12 : 11,529,770.16 = 2,829,966.12 : x - Step 2: Convert to fraction form
7,688,880.12/11,529,770.16 = 2,829,966.12/x - Step 3: Cross multiply
7,688,880.12x = 11,529,770.16 × 2,829,966.12 - Step 4: Simplify right side
7,688,880.12x = 32,628,858,924,186.98 - Step 5: Solve for x
x = 32,628,858,924,186.98/7,688,880.12 - Step 6: Final answer
x = 4,243,642.56
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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.