Finding the Fourth Proportional to 321,840,904.20, 482,761,356.30 and 117,375,649.80
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Solution
The fourth proportional to 321,840,904.20, 482,761,356.30 and 117,375,649.80 is: 176,063,474.70
Step by Step Solution
- Step 1: Write the proportion equation
321,840,904.20 : 482,761,356.30 = 117,375,649.80 : x - Step 2: Convert to fraction form
321,840,904.20/482,761,356.30 = 117,375,649.80/x - Step 3: Cross multiply
321,840,904.20x = 482,761,356.30 × 117,375,649.80 - Step 4: Simplify right side
321,840,904.20x = 56,664,427,894,041,824 - Step 5: Solve for x
x = 56,664,427,894,041,824/321,840,904.20 - Step 6: Final answer
x = 176,063,474.70
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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.