Finding the Fourth Proportional to 320,828,186.37, 480,413,470.41 and 221,424,556.68
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Solution
The fourth proportional to 320,828,186.37, 480,413,470.41 and 221,424,556.68 is: 331,564,819.52
Step by Step Solution
- Step 1: Write the proportion equation
320,828,186.37 : 480,413,470.41 = 221,424,556.68 : x - Step 2: Convert to fraction form
320,828,186.37/480,413,470.41 = 221,424,556.68/x - Step 3: Cross multiply
320,828,186.37x = 480,413,470.41 × 221,424,556.68 - Step 4: Simplify right side
320,828,186.37x = 106,375,339,708,702,592 - Step 5: Solve for x
x = 106,375,339,708,702,592/320,828,186.37 - Step 6: Final answer
x = 331,564,819.52
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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.