Finding the Fourth Proportional to 7,219,833.12, 9,963,645.84 and 4,122,861.12
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Solution
The fourth proportional to 7,219,833.12, 9,963,645.84 and 4,122,861.12 is: 5,689,706.03
Step by Step Solution
- Step 1: Write the proportion equation
7,219,833.12 : 9,963,645.84 = 4,122,861.12 : x - Step 2: Convert to fraction form
7,219,833.12/9,963,645.84 = 4,122,861.12/x - Step 3: Cross multiply
7,219,833.12x = 9,963,645.84 × 4,122,861.12 - Step 4: Simplify right side
7,219,833.12x = 41,078,728,047,185.74 - Step 5: Solve for x
x = 41,078,728,047,185.74/7,219,833.12 - Step 6: Final answer
x = 5,689,706.03
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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.