Finding the Fourth Proportional to 5,163,640.20, 7,125,784.04 and 2,840,482.71
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Solution
The fourth proportional to 5,163,640.20, 7,125,784.04 and 2,840,482.71 is: 3,919,844.45
Step by Step Solution
- Step 1: Write the proportion equation
5,163,640.20 : 7,125,784.04 = 2,840,482.71 : x - Step 2: Convert to fraction form
5,163,640.20/7,125,784.04 = 2,840,482.71/x - Step 3: Cross multiply
5,163,640.20x = 7,125,784.04 × 2,840,482.71 - Step 4: Simplify right side
5,163,640.20x = 20,240,666,367,915.16 - Step 5: Solve for x
x = 20,240,666,367,915.16/5,163,640.20 - Step 6: Final answer
x = 3,919,844.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.