Finding the Fourth Proportional to 115,842,742.14, 159,845,657.67 and 66,275,242.50
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Solution
The fourth proportional to 115,842,742.14, 159,845,657.67 and 66,275,242.50 is: 91,449,921.93
Step by Step Solution
- Step 1: Write the proportion equation
115,842,742.14 : 159,845,657.67 = 66,275,242.50 : x - Step 2: Convert to fraction form
115,842,742.14/159,845,657.67 = 66,275,242.50/x - Step 3: Cross multiply
115,842,742.14x = 159,845,657.67 × 66,275,242.50 - Step 4: Simplify right side
115,842,742.14x = 10,593,809,724,651,234 - Step 5: Solve for x
x = 10,593,809,724,651,234/115,842,742.14 - Step 6: Final answer
x = 91,449,921.93
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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.