Finding the Fourth Proportional to 3,878,864.13, 5,352,832.47 and 2,248,217.34
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Solution
The fourth proportional to 3,878,864.13, 5,352,832.47 and 2,248,217.34 is: 3,102,539.91
Step by Step Solution
- Step 1: Write the proportion equation
3,878,864.13 : 5,352,832.47 = 2,248,217.34 : x - Step 2: Convert to fraction form
3,878,864.13/5,352,832.47 = 2,248,217.34/x - Step 3: Cross multiply
3,878,864.13x = 5,352,832.47 × 2,248,217.34 - Step 4: Simplify right side
3,878,864.13x = 12,034,330,777,169.03 - Step 5: Solve for x
x = 12,034,330,777,169.03/3,878,864.13 - Step 6: Final answer
x = 3,102,539.91
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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.