Finding the Fourth Proportional to 71,496,355.97, 98,662,065.73 and 40,555,860.95
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Solution
The fourth proportional to 71,496,355.97, 98,662,065.73 and 40,555,860.95 is: 55,965,439.98
Step by Step Solution
- Step 1: Write the proportion equation
71,496,355.97 : 98,662,065.73 = 40,555,860.95 : x - Step 2: Convert to fraction form
71,496,355.97/98,662,065.73 = 40,555,860.95/x - Step 3: Cross multiply
71,496,355.97x = 98,662,065.73 × 40,555,860.95 - Step 4: Simplify right side
71,496,355.97x = 4,001,325,018,930,906 - Step 5: Solve for x
x = 4,001,325,018,930,906/71,496,355.97 - Step 6: Final answer
x = 55,965,439.98
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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.