Finding the Fourth Proportional to 18,859,711.62, 26,026,636.31 and 11,417,275.08
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Solution
The fourth proportional to 18,859,711.62, 26,026,636.31 and 11,417,275.08 is: 15,755,981.44
Step by Step Solution
- Step 1: Write the proportion equation
18,859,711.62 : 26,026,636.31 = 11,417,275.08 : x - Step 2: Convert to fraction form
18,859,711.62/26,026,636.31 = 11,417,275.08/x - Step 3: Cross multiply
18,859,711.62x = 26,026,636.31 × 11,417,275.08 - Step 4: Simplify right side
18,859,711.62x = 297,153,266,241,714.44 - Step 5: Solve for x
x = 297,153,266,241,714.44/18,859,711.62 - Step 6: Final answer
x = 15,755,981.44
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.