Finding the Fourth Proportional to 442,929,007.20, 664,194,445.20 and 170,209,135.20
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Solution
The fourth proportional to 442,929,007.20, 664,194,445.20 and 170,209,135.20 is: 255,237,205.70
Step by Step Solution
- Step 1: Write the proportion equation
442,929,007.20 : 664,194,445.20 = 170,209,135.20 : x - Step 2: Convert to fraction form
442,929,007.20/664,194,445.20 = 170,209,135.20/x - Step 3: Cross multiply
442,929,007.20x = 664,194,445.20 × 170,209,135.20 - Step 4: Simplify right side
442,929,007.20x = 113,051,962,122,135,792 - Step 5: Solve for x
x = 113,051,962,122,135,792/442,929,007.20 - Step 6: Final answer
x = 255,237,205.70
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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.