Finding the Fourth Proportional to 413,939,989.19, 621,340,648.03 and 304,888,295.99
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Solution
The fourth proportional to 413,939,989.19, 621,340,648.03 and 304,888,295.99 is: 457,649,650.57
Step by Step Solution
- Step 1: Write the proportion equation
413,939,989.19 : 621,340,648.03 = 304,888,295.99 : x - Step 2: Convert to fraction form
413,939,989.19/621,340,648.03 = 304,888,295.99/x - Step 3: Cross multiply
413,939,989.19x = 621,340,648.03 × 304,888,295.99 - Step 4: Simplify right side
413,939,989.19x = 189,439,491,409,123,520 - Step 5: Solve for x
x = 189,439,491,409,123,520/413,939,989.19 - Step 6: Final answer
x = 457,649,650.57
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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.