Finding the Fourth Proportional to 18,382,446.90, 27,573,670.35 and 12,335,829.30
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Solution
The fourth proportional to 18,382,446.90, 27,573,670.35 and 12,335,829.30 is: 18,503,743.95
Step by Step Solution
- Step 1: Write the proportion equation
18,382,446.90 : 27,573,670.35 = 12,335,829.30 : x - Step 2: Convert to fraction form
18,382,446.90/27,573,670.35 = 12,335,829.30/x - Step 3: Cross multiply
18,382,446.90x = 27,573,670.35 × 12,335,829.30 - Step 4: Simplify right side
18,382,446.90x = 340,144,090,612,071.31 - Step 5: Solve for x
x = 340,144,090,612,071.31/18,382,446.90 - Step 6: Final answer
x = 18,503,743.95
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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.