Finding the Fourth Proportional to 17,390,851.20, 26,086,276.80 and 13,355,107.20
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Solution
The fourth proportional to 17,390,851.20, 26,086,276.80 and 13,355,107.20 is: 20,032,660.80
Step by Step Solution
- Step 1: Write the proportion equation
17,390,851.20 : 26,086,276.80 = 13,355,107.20 : x - Step 2: Convert to fraction form
17,390,851.20/26,086,276.80 = 13,355,107.20/x - Step 3: Cross multiply
17,390,851.20x = 26,086,276.80 × 13,355,107.20 - Step 4: Simplify right side
17,390,851.20x = 348,385,023,112,872.94 - Step 5: Solve for x
x = 348,385,023,112,872.94/17,390,851.20 - Step 6: Final answer
x = 20,032,660.80
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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.