Finding the Fourth Proportional to 7,910,531.16, 10,916,763.28 and 4,472,698.36
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Solution
The fourth proportional to 7,910,531.16, 10,916,763.28 and 4,472,698.36 is: 6,172,453.94
Step by Step Solution
- Step 1: Write the proportion equation
7,910,531.16 : 10,916,763.28 = 4,472,698.36 : x - Step 2: Convert to fraction form
7,910,531.16/10,916,763.28 = 4,472,698.36/x - Step 3: Cross multiply
7,910,531.16x = 10,916,763.28 × 4,472,698.36 - Step 4: Simplify right side
7,910,531.16x = 48,827,389,218,964.22 - Step 5: Solve for x
x = 48,827,389,218,964.22/7,910,531.16 - Step 6: Final answer
x = 6,172,453.94
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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.