Finding the Fourth Proportional to 18,534,486.40, 27,781,454.40 and 6,561,059.20
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Solution
The fourth proportional to 18,534,486.40, 27,781,454.40 and 6,561,059.20 is: 9,834,411.54
Step by Step Solution
- Step 1: Write the proportion equation
18,534,486.40 : 27,781,454.40 = 6,561,059.20 : x - Step 2: Convert to fraction form
18,534,486.40/27,781,454.40 = 6,561,059.20/x - Step 3: Cross multiply
18,534,486.40x = 27,781,454.40 × 6,561,059.20 - Step 4: Simplify right side
18,534,486.40x = 182,275,766,980,500.47 - Step 5: Solve for x
x = 182,275,766,980,500.47/18,534,486.40 - Step 6: Final answer
x = 9,834,411.54
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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.