Finding the Fourth Proportional to 3,939,117.05, 5,911,330.97 and 1,380,354.98
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Solution
The fourth proportional to 3,939,117.05, 5,911,330.97 and 1,380,354.98 is: 2,071,462.97
Step by Step Solution
- Step 1: Write the proportion equation
3,939,117.05 : 5,911,330.97 = 1,380,354.98 : x - Step 2: Convert to fraction form
3,939,117.05/5,911,330.97 = 1,380,354.98/x - Step 3: Cross multiply
3,939,117.05x = 5,911,330.97 × 1,380,354.98 - Step 4: Simplify right side
3,939,117.05x = 8,159,735,116,761.96 - Step 5: Solve for x
x = 8,159,735,116,761.96/3,939,117.05 - Step 6: Final answer
x = 2,071,462.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.