Finding the Fourth Proportional to 5,385,658.84, 8,078,466.12 and 2,190,758.02
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Solution
The fourth proportional to 5,385,658.84, 8,078,466.12 and 2,190,758.02 is: 3,286,128.02
Step by Step Solution
- Step 1: Write the proportion equation
5,385,658.84 : 8,078,466.12 = 2,190,758.02 : x - Step 2: Convert to fraction form
5,385,658.84/8,078,466.12 = 2,190,758.02/x - Step 3: Cross multiply
5,385,658.84x = 8,078,466.12 × 2,190,758.02 - Step 4: Simplify right side
5,385,658.84x = 17,697,964,441,688.28 - Step 5: Solve for x
x = 17,697,964,441,688.28/5,385,658.84 - Step 6: Final answer
x = 3,286,128.02
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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.