Finding the Fourth Proportional to 18,228,729.60, 27,306,352.80 and 11,384,294.40
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Solution
The fourth proportional to 18,228,729.60, 27,306,352.80 and 11,384,294.40 is: 17,053,495.56
Step by Step Solution
- Step 1: Write the proportion equation
18,228,729.60 : 27,306,352.80 = 11,384,294.40 : x - Step 2: Convert to fraction form
18,228,729.60/27,306,352.80 = 11,384,294.40/x - Step 3: Cross multiply
18,228,729.60x = 27,306,352.80 × 11,384,294.40 - Step 4: Simplify right side
18,228,729.60x = 310,863,559,265,464.31 - Step 5: Solve for x
x = 310,863,559,265,464.31/18,228,729.60 - Step 6: Final answer
x = 17,053,495.56
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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.