Finding the Fourth Proportional to 497,595,436.80, 746,393,155.20 and 221,246,116.80
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Solution
The fourth proportional to 497,595,436.80, 746,393,155.20 and 221,246,116.80 is: 331,869,175.20
Step by Step Solution
- Step 1: Write the proportion equation
497,595,436.80 : 746,393,155.20 = 221,246,116.80 : x - Step 2: Convert to fraction form
497,595,436.80/746,393,155.20 = 221,246,116.80/x - Step 3: Cross multiply
497,595,436.80x = 746,393,155.20 × 221,246,116.80 - Step 4: Simplify right side
497,595,436.80x = 165,136,587,194,099,744 - Step 5: Solve for x
x = 165,136,587,194,099,744/497,595,436.80 - Step 6: Final answer
x = 331,869,175.20
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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.