Finding the Fourth Proportional to 4,647,977.70, 6,971,966.55 and 2,128,553.70
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Solution
The fourth proportional to 4,647,977.70, 6,971,966.55 and 2,128,553.70 is: 3,192,830.55
Step by Step Solution
- Step 1: Write the proportion equation
4,647,977.70 : 6,971,966.55 = 2,128,553.70 : x - Step 2: Convert to fraction form
4,647,977.70/6,971,966.55 = 2,128,553.70/x - Step 3: Cross multiply
4,647,977.70x = 6,971,966.55 × 2,128,553.70 - Step 4: Simplify right side
4,647,977.70x = 14,840,205,196,278.74 - Step 5: Solve for x
x = 14,840,205,196,278.74/4,647,977.70 - Step 6: Final answer
x = 3,192,830.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.