Finding the Fourth Proportional to 5,423,130.75, 8,134,743.78 and 1,379,622.84
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Solution
The fourth proportional to 5,423,130.75, 8,134,743.78 and 1,379,622.84 is: 2,069,446.38
Step by Step Solution
- Step 1: Write the proportion equation
5,423,130.75 : 8,134,743.78 = 1,379,622.84 : x - Step 2: Convert to fraction form
5,423,130.75/8,134,743.78 = 1,379,622.84/x - Step 3: Cross multiply
5,423,130.75x = 8,134,743.78 × 1,379,622.84 - Step 4: Simplify right side
5,423,130.75x = 11,222,878,316,435.94 - Step 5: Solve for x
x = 11,222,878,316,435.94/5,423,130.75 - Step 6: Final answer
x = 2,069,446.38
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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.