Finding the Fourth Proportional to 8,196,553.80, 11,305,965.78 and 4,977,289.80
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Solution
The fourth proportional to 8,196,553.80, 11,305,965.78 and 4,977,289.80 is: 6,865,454.62
Step by Step Solution
- Step 1: Write the proportion equation
8,196,553.80 : 11,305,965.78 = 4,977,289.80 : x - Step 2: Convert to fraction form
8,196,553.80/11,305,965.78 = 4,977,289.80/x - Step 3: Cross multiply
8,196,553.80x = 11,305,965.78 × 4,977,289.80 - Step 4: Simplify right side
8,196,553.80x = 56,273,068,155,943.04 - Step 5: Solve for x
x = 56,273,068,155,943.04/8,196,553.80 - Step 6: Final answer
x = 6,865,454.62
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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.