Finding the Fourth Proportional to 5,228,962.18, 7,216,143.04 and 2,905,952.60
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Solution
The fourth proportional to 5,228,962.18, 7,216,143.04 and 2,905,952.60 is: 4,010,311.98
Step by Step Solution
- Step 1: Write the proportion equation
5,228,962.18 : 7,216,143.04 = 2,905,952.60 : x - Step 2: Convert to fraction form
5,228,962.18/7,216,143.04 = 2,905,952.60/x - Step 3: Cross multiply
5,228,962.18x = 7,216,143.04 × 2,905,952.60 - Step 4: Simplify right side
5,228,962.18x = 20,969,769,640,844.96 - Step 5: Solve for x
x = 20,969,769,640,844.96/5,228,962.18 - Step 6: Final answer
x = 4,010,311.98
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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.