Finding the Fourth Proportional to 20,351,815.99, 30,528,887.70 and 5,777,595.51
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Solution
The fourth proportional to 20,351,815.99, 30,528,887.70 and 5,777,595.51 is: 8,666,723.63
Step by Step Solution
- Step 1: Write the proportion equation
20,351,815.99 : 30,528,887.70 = 5,777,595.51 : x - Step 2: Convert to fraction form
20,351,815.99/30,528,887.70 = 5,777,595.51/x - Step 3: Cross multiply
20,351,815.99x = 30,528,887.70 × 5,777,595.51 - Step 4: Simplify right side
20,351,815.99x = 176,383,564,633,085.41 - Step 5: Solve for x
x = 176,383,564,633,085.41/20,351,815.99 - Step 6: Final answer
x = 8,666,723.63
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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.