Finding the Fourth Proportional to 27,646,763.99, 38,153,450.67 and 15,088,506.31
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Solution
The fourth proportional to 27,646,763.99, 38,153,450.67 and 15,088,506.31 is: 20,822,638.82
Step by Step Solution
- Step 1: Write the proportion equation
27,646,763.99 : 38,153,450.67 = 15,088,506.31 : x - Step 2: Convert to fraction form
27,646,763.99/38,153,450.67 = 15,088,506.31/x - Step 3: Cross multiply
27,646,763.99x = 38,153,450.67 × 15,088,506.31 - Step 4: Simplify right side
27,646,763.99x = 575,678,581,043,938.25 - Step 5: Solve for x
x = 575,678,581,043,938.25/27,646,763.99 - Step 6: Final answer
x = 20,822,638.82
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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.