Finding the Fourth Proportional to 5,390,308.48, 7,438,587.18 and 2,942,919.44
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Solution
The fourth proportional to 5,390,308.48, 7,438,587.18 and 2,942,919.44 is: 4,061,207.80
Step by Step Solution
- Step 1: Write the proportion equation
5,390,308.48 : 7,438,587.18 = 2,942,919.44 : x - Step 2: Convert to fraction form
5,390,308.48/7,438,587.18 = 2,942,919.44/x - Step 3: Cross multiply
5,390,308.48x = 7,438,587.18 × 2,942,919.44 - Step 4: Simplify right side
5,390,308.48x = 21,891,162,818,156.78 - Step 5: Solve for x
x = 21,891,162,818,156.78/5,390,308.48 - Step 6: Final answer
x = 4,061,207.80
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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.