Finding the Fourth Proportional to 7,436,440.40, 11,154,430.20 and 2,117,656.40
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Solution
The fourth proportional to 7,436,440.40, 11,154,430.20 and 2,117,656.40 is: 3,176,418.99
Step by Step Solution
- Step 1: Write the proportion equation
7,436,440.40 : 11,154,430.20 = 2,117,656.40 : x - Step 2: Convert to fraction form
7,436,440.40/11,154,430.20 = 2,117,656.40/x - Step 3: Cross multiply
7,436,440.40x = 11,154,430.20 × 2,117,656.40 - Step 4: Simplify right side
7,436,440.40x = 23,621,250,501,383.28 - Step 5: Solve for x
x = 23,621,250,501,383.28/7,436,440.40 - Step 6: Final answer
x = 3,176,418.99
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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.