Finding the Fourth Proportional to 15,001,705.80, 20,702,453.38 and 8,126,187.80
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Solution
The fourth proportional to 15,001,705.80, 20,702,453.38 and 8,126,187.80 is: 11,214,192.99
Step by Step Solution
- Step 1: Write the proportion equation
15,001,705.80 : 20,702,453.38 = 8,126,187.80 : x - Step 2: Convert to fraction form
15,001,705.80/20,702,453.38 = 8,126,187.80/x - Step 3: Cross multiply
15,001,705.80x = 20,702,453.38 × 8,126,187.80 - Step 4: Simplify right side
15,001,705.80x = 168,232,023,962,797.03 - Step 5: Solve for x
x = 168,232,023,962,797.03/15,001,705.80 - Step 6: Final answer
x = 11,214,192.99
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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.