Finding the Fourth Proportional to 4,991,355.41, 6,888,385.46 and 2,815,104.51
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Solution
The fourth proportional to 4,991,355.41, 6,888,385.46 and 2,815,104.51 is: 3,885,021.88
Step by Step Solution
- Step 1: Write the proportion equation
4,991,355.41 : 6,888,385.46 = 2,815,104.51 : x - Step 2: Convert to fraction form
4,991,355.41/6,888,385.46 = 2,815,104.51/x - Step 3: Cross multiply
4,991,355.41x = 6,888,385.46 × 2,815,104.51 - Step 4: Simplify right side
4,991,355.41x = 19,391,524,982,102.18 - Step 5: Solve for x
x = 19,391,524,982,102.18/4,991,355.41 - Step 6: Final answer
x = 3,885,021.88
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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.