Finding the Fourth Proportional to 7,647,389.92, 10,553,698.92 and 4,209,950.80
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Solution
The fourth proportional to 7,647,389.92, 10,553,698.92 and 4,209,950.80 is: 5,809,897.71
Step by Step Solution
- Step 1: Write the proportion equation
7,647,389.92 : 10,553,698.92 = 4,209,950.80 : x - Step 2: Convert to fraction form
7,647,389.92/10,553,698.92 = 4,209,950.80/x - Step 3: Cross multiply
7,647,389.92x = 10,553,698.92 × 4,209,950.80 - Step 4: Simplify right side
7,647,389.92x = 44,430,553,211,213.13 - Step 5: Solve for x
x = 44,430,553,211,213.13/7,647,389.92 - Step 6: Final answer
x = 5,809,897.71
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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.