Finding the Fourth Proportional to 7,217,530.18, 9,960,191.36 and 3,954,468.67
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Solution
The fourth proportional to 7,217,530.18, 9,960,191.36 and 3,954,468.67 is: 5,457,166.60
Step by Step Solution
- Step 1: Write the proportion equation
7,217,530.18 : 9,960,191.36 = 3,954,468.67 : x - Step 2: Convert to fraction form
7,217,530.18/9,960,191.36 = 3,954,468.67/x - Step 3: Cross multiply
7,217,530.18x = 9,960,191.36 × 3,954,468.67 - Step 4: Simplify right side
7,217,530.18x = 39,387,264,650,481.13 - Step 5: Solve for x
x = 39,387,264,650,481.13/7,217,530.18 - Step 6: Final answer
x = 5,457,166.60
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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.