Finding the Fourth Proportional to 7,242,806.20, 10,864,209.30 and 2,194,116.70
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Solution
The fourth proportional to 7,242,806.20, 10,864,209.30 and 2,194,116.70 is: 3,291,175.05
Step by Step Solution
- Step 1: Write the proportion equation
7,242,806.20 : 10,864,209.30 = 2,194,116.70 : x - Step 2: Convert to fraction form
7,242,806.20/10,864,209.30 = 2,194,116.70/x - Step 3: Cross multiply
7,242,806.20x = 10,864,209.30 × 2,194,116.70 - Step 4: Simplify right side
7,242,806.20x = 23,837,343,057,425.31 - Step 5: Solve for x
x = 23,837,343,057,425.31/7,242,806.20 - Step 6: Final answer
x = 3,291,175.05
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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.