Finding the Fourth Proportional to 5,385,655.84, 8,078,461.62 and 2,190,755.02
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Solution
The fourth proportional to 5,385,655.84, 8,078,461.62 and 2,190,755.02 is: 3,286,123.52
Step by Step Solution
- Step 1: Write the proportion equation
5,385,655.84 : 8,078,461.62 = 2,190,755.02 : x - Step 2: Convert to fraction form
5,385,655.84/8,078,461.62 = 2,190,755.02/x - Step 3: Cross multiply
5,385,655.84x = 8,078,461.62 × 2,190,755.02 - Step 4: Simplify right side
5,385,655.84x = 17,697,930,347,892.33 - Step 5: Solve for x
x = 17,697,930,347,892.33/5,385,655.84 - Step 6: Final answer
x = 3,286,123.52
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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.