Finding the Fourth Proportional to 5,180,809.40, 7,771,214.10 and 3,488,751.80
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Solution
The fourth proportional to 5,180,809.40, 7,771,214.10 and 3,488,751.80 is: 5,233,127.70
Step by Step Solution
- Step 1: Write the proportion equation
5,180,809.40 : 7,771,214.10 = 3,488,751.80 : x - Step 2: Convert to fraction form
5,180,809.40/7,771,214.10 = 3,488,751.80/x - Step 3: Cross multiply
5,180,809.40x = 7,771,214.10 × 3,488,751.80 - Step 4: Simplify right side
5,180,809.40x = 27,111,837,179,560.38 - Step 5: Solve for x
x = 27,111,837,179,560.38/5,180,809.40 - Step 6: Final answer
x = 5,233,127.70
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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.