Finding the Fourth Proportional to 19,420,418.80, 29,120,130.60 and 8,062,015.60
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Solution
The fourth proportional to 19,420,418.80, 29,120,130.60 and 8,062,015.60 is: 12,088,665.52
Step by Step Solution
- Step 1: Write the proportion equation
19,420,418.80 : 29,120,130.60 = 8,062,015.60 : x - Step 2: Convert to fraction form
19,420,418.80/29,120,130.60 = 8,062,015.60/x - Step 3: Cross multiply
19,420,418.80x = 29,120,130.60 × 8,062,015.60 - Step 4: Simplify right side
19,420,418.80x = 234,766,947,171,237.38 - Step 5: Solve for x
x = 234,766,947,171,237.38/19,420,418.80 - Step 6: Final answer
x = 12,088,665.52
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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.