Finding the Fourth Proportional to 5,115,302.13, 7,059,117.55 and 2,823,463.43
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Solution
The fourth proportional to 5,115,302.13, 7,059,117.55 and 2,823,463.43 is: 3,896,379.86
Step by Step Solution
- Step 1: Write the proportion equation
5,115,302.13 : 7,059,117.55 = 2,823,463.43 : x - Step 2: Convert to fraction form
5,115,302.13/7,059,117.55 = 2,823,463.43/x - Step 3: Cross multiply
5,115,302.13x = 7,059,117.55 × 2,823,463.43 - Step 4: Simplify right side
5,115,302.13x = 19,931,160,215,200.61 - Step 5: Solve for x
x = 19,931,160,215,200.61/5,115,302.13 - Step 6: Final answer
x = 3,896,379.86
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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.