Finding the Fourth Proportional to 7,128,761.14, 10,688,871.36 and 2,268,968.45
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Solution
The fourth proportional to 7,128,761.14, 10,688,871.36 and 2,268,968.45 is: 3,402,093.49
Step by Step Solution
- Step 1: Write the proportion equation
7,128,761.14 : 10,688,871.36 = 2,268,968.45 : x - Step 2: Convert to fraction form
7,128,761.14/10,688,871.36 = 2,268,968.45/x - Step 3: Cross multiply
7,128,761.14x = 10,688,871.36 × 2,268,968.45 - Step 4: Simplify right side
7,128,761.14x = 24,252,711,877,096.13 - Step 5: Solve for x
x = 24,252,711,877,096.13/7,128,761.14 - Step 6: Final answer
x = 3,402,093.49
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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.