Finding the Fourth Proportional to 85,036,278.40, 127,523,121.36 and 66,875,955.52
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Solution
The fourth proportional to 85,036,278.40, 127,523,121.36 and 66,875,955.52 is: 100,289,320.66
Step by Step Solution
- Step 1: Write the proportion equation
85,036,278.40 : 127,523,121.36 = 66,875,955.52 : x - Step 2: Convert to fraction form
85,036,278.40/127,523,121.36 = 66,875,955.52/x - Step 3: Cross multiply
85,036,278.40x = 127,523,121.36 × 66,875,955.52 - Step 4: Simplify right side
85,036,278.40x = 8,528,230,591,842,922 - Step 5: Solve for x
x = 8,528,230,591,842,922/85,036,278.40 - Step 6: Final answer
x = 100,289,320.66
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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.