Finding the Fourth Proportional to 85,100,688,828.80, 127,651,033,243.20 and 26,205,121,750.40
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Solution
The fourth proportional to 85,100,688,828.80, 127,651,033,243.20 and 26,205,121,750.40 is: 39,307,682,625.60
Step by Step Solution
- Step 1: Write the proportion equation
85,100,688,828.80 : 127,651,033,243.20 = 26,205,121,750.40 : x - Step 2: Convert to fraction form
85,100,688,828.80/127,651,033,243.20 = 26,205,121,750.40/x - Step 3: Cross multiply
85,100,688,828.80x = 127,651,033,243.20 × 26,205,121,750.40 - Step 4: Simplify right side
85,100,688,828.80x = 3,345,110,867,702,414,049,280 - Step 5: Solve for x
x = 3,345,110,867,702,414,049,280/85,100,688,828.80 - Step 6: Final answer
x = 39,307,682,625.60
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1.5x scale
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.