Finding the Fourth Proportional to 275,334,520.80, 379,949,998.80 and 149,884,108.68
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Solution
The fourth proportional to 275,334,520.80, 379,949,998.80 and 149,884,108.68 is: 206,833,733.55
Step by Step Solution
- Step 1: Write the proportion equation
275,334,520.80 : 379,949,998.80 = 149,884,108.68 : x - Step 2: Convert to fraction form
275,334,520.80/379,949,998.80 = 149,884,108.68/x - Step 3: Cross multiply
275,334,520.80x = 379,949,998.80 × 149,884,108.68 - Step 4: Simplify right side
275,334,520.80x = 56,948,466,913,105,072 - Step 5: Solve for x
x = 56,948,466,913,105,072/275,334,520.80 - Step 6: Final answer
x = 206,833,733.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.