Finding the Fourth Proportional to 219,668,459.36, 327,561,893.28 and 217,696,813.28
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Solution
The fourth proportional to 219,668,459.36, 327,561,893.28 and 217,696,813.28 is: 324,621,843.88
Step by Step Solution
- Step 1: Write the proportion equation
219,668,459.36 : 327,561,893.28 = 217,696,813.28 : x - Step 2: Convert to fraction form
219,668,459.36/327,561,893.28 = 217,696,813.28/x - Step 3: Cross multiply
219,668,459.36x = 327,561,893.28 × 217,696,813.28 - Step 4: Simplify right side
219,668,459.36x = 71,309,180,319,019,440 - Step 5: Solve for x
x = 71,309,180,319,019,440/219,668,459.36 - Step 6: Final answer
x = 324,621,843.88
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.