Finding the Fourth Proportional to 139,318,161.12, 192,259,185.36 and 76,595,326.32
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Solution
The fourth proportional to 139,318,161.12, 192,259,185.36 and 76,595,326.32 is: 105,701,617.95
Step by Step Solution
- Step 1: Write the proportion equation
139,318,161.12 : 192,259,185.36 = 76,595,326.32 : x - Step 2: Convert to fraction form
139,318,161.12/192,259,185.36 = 76,595,326.32/x - Step 3: Cross multiply
139,318,161.12x = 192,259,185.36 × 76,595,326.32 - Step 4: Simplify right side
139,318,161.12x = 14,726,155,040,666,566 - Step 5: Solve for x
x = 14,726,155,040,666,566/139,318,161.12 - Step 6: Final answer
x = 105,701,617.95
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1.5x scale
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.