Finding the Fourth Proportional to 53,215,265.20, 79,822,897.80 and 17,313,473.20
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Solution
The fourth proportional to 53,215,265.20, 79,822,897.80 and 17,313,473.20 is: 25,970,209.80
Step by Step Solution
- Step 1: Write the proportion equation
53,215,265.20 : 79,822,897.80 = 17,313,473.20 : x - Step 2: Convert to fraction form
53,215,265.20/79,822,897.80 = 17,313,473.20/x - Step 3: Cross multiply
53,215,265.20x = 79,822,897.80 × 17,313,473.20 - Step 4: Simplify right side
53,215,265.20x = 1,382,011,601,806,638.75 - Step 5: Solve for x
x = 1,382,011,601,806,638.75/53,215,265.20 - Step 6: Final answer
x = 25,970,209.80
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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.