Finding the Fourth Proportional to 7,217,528.74, 9,960,189.35 and 3,954,467.24
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Solution
The fourth proportional to 7,217,528.74, 9,960,189.35 and 3,954,467.24 is: 5,457,164.62
Step by Step Solution
- Step 1: Write the proportion equation
7,217,528.74 : 9,960,189.35 = 3,954,467.24 : x - Step 2: Convert to fraction form
7,217,528.74/9,960,189.35 = 3,954,467.24/x - Step 3: Cross multiply
7,217,528.74x = 9,960,189.35 × 3,954,467.24 - Step 4: Simplify right side
7,217,528.74x = 39,387,242,488,771.90 - Step 5: Solve for x
x = 39,387,242,488,771.90/7,217,528.74 - Step 6: Final answer
x = 5,457,164.62
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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.