Finding the Fourth Proportional to 455,521,840.17, 628,620,745.65 and 246,678,342.99
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Solution
The fourth proportional to 455,521,840.17, 628,620,745.65 and 246,678,342.99 is: 340,416,441.61
Step by Step Solution
- Step 1: Write the proportion equation
455,521,840.17 : 628,620,745.65 = 246,678,342.99 : x - Step 2: Convert to fraction form
455,521,840.17/628,620,745.65 = 246,678,342.99/x - Step 3: Cross multiply
455,521,840.17x = 628,620,745.65 × 246,678,342.99 - Step 4: Simplify right side
455,521,840.17x = 155,067,123,906,080,256 - Step 5: Solve for x
x = 155,067,123,906,080,256/455,521,840.17 - Step 6: Final answer
x = 340,416,441.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.