Finding the Fourth Proportional to 331,776,278.90, 497,664,418.35 and 328,591,229.30
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Solution
The fourth proportional to 331,776,278.90, 497,664,418.35 and 328,591,229.30 is: 492,886,843.95
Step by Step Solution
- Step 1: Write the proportion equation
331,776,278.90 : 497,664,418.35 = 328,591,229.30 : x - Step 2: Convert to fraction form
331,776,278.90/497,664,418.35 = 328,591,229.30/x - Step 3: Cross multiply
331,776,278.90x = 497,664,418.35 × 328,591,229.30 - Step 4: Simplify right side
331,776,278.90x = 163,528,163,004,496,000 - Step 5: Solve for x
x = 163,528,163,004,496,000/331,776,278.90 - Step 6: Final answer
x = 492,886,843.95
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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.