Finding the Fourth Proportional to 7,436,435.40, 11,154,422.70 and 2,117,651.40
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Solution
The fourth proportional to 7,436,435.40, 11,154,422.70 and 2,117,651.40 is: 3,176,411.49
Step by Step Solution
- Step 1: Write the proportion equation
7,436,435.40 : 11,154,422.70 = 2,117,651.40 : x - Step 2: Convert to fraction form
7,436,435.40/11,154,422.70 = 2,117,651.40/x - Step 3: Cross multiply
7,436,435.40x = 11,154,422.70 × 2,117,651.40 - Step 4: Simplify right side
7,436,435.40x = 23,621,178,846,846.78 - Step 5: Solve for x
x = 23,621,178,846,846.78/7,436,435.40 - Step 6: Final answer
x = 3,176,411.49
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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.