Finding the Fourth Proportional to 21,349,633.50, 29,462,450.40 and 11,560,074.84
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Solution
The fourth proportional to 21,349,633.50, 29,462,450.40 and 11,560,074.84 is: 15,952,879.55
Step by Step Solution
- Step 1: Write the proportion equation
21,349,633.50 : 29,462,450.40 = 11,560,074.84 : x - Step 2: Convert to fraction form
21,349,633.50/29,462,450.40 = 11,560,074.84/x - Step 3: Cross multiply
21,349,633.50x = 29,462,450.40 × 11,560,074.84 - Step 4: Simplify right side
21,349,633.50x = 340,588,131,593,787.94 - Step 5: Solve for x
x = 340,588,131,593,787.94/21,349,633.50 - Step 6: Final answer
x = 15,952,879.55
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1.5x scale
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.