Finding the Fourth Proportional to 21,306,246.70, 31,972,492.05 and 9,181,518.70
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Solution
The fourth proportional to 21,306,246.70, 31,972,492.05 and 9,181,518.70 is: 13,777,932.72
Step by Step Solution
- Step 1: Write the proportion equation
21,306,246.70 : 31,972,492.05 = 9,181,518.70 : x - Step 2: Convert to fraction form
21,306,246.70/31,972,492.05 = 9,181,518.70/x - Step 3: Cross multiply
21,306,246.70x = 31,972,492.05 × 9,181,518.70 - Step 4: Simplify right side
21,306,246.70x = 293,556,033,642,676.31 - Step 5: Solve for x
x = 293,556,033,642,676.31/21,306,246.70 - Step 6: Final answer
x = 13,777,932.72
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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.