Finding the Fourth Proportional to 275,676,929.20, 413,515,393.80 and 173,640,257.20
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Solution
The fourth proportional to 275,676,929.20, 413,515,393.80 and 173,640,257.20 is: 260,460,385.80
Step by Step Solution
- Step 1: Write the proportion equation
275,676,929.20 : 413,515,393.80 = 173,640,257.20 : x - Step 2: Convert to fraction form
275,676,929.20/413,515,393.80 = 173,640,257.20/x - Step 3: Cross multiply
275,676,929.20x = 413,515,393.80 × 173,640,257.20 - Step 4: Simplify right side
275,676,929.20x = 71,802,919,335,591,280 - Step 5: Solve for x
x = 71,802,919,335,591,280/275,676,929.20 - Step 6: Final answer
x = 260,460,385.80
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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.