Finding the Fourth Proportional to 387,841,256.20, 581,761,884.30 and 242,722,433.80
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Solution
The fourth proportional to 387,841,256.20, 581,761,884.30 and 242,722,433.80 is: 364,083,650.70
Step by Step Solution
- Step 1: Write the proportion equation
387,841,256.20 : 581,761,884.30 = 242,722,433.80 : x - Step 2: Convert to fraction form
387,841,256.20/581,761,884.30 = 242,722,433.80/x - Step 3: Cross multiply
387,841,256.20x = 581,761,884.30 × 242,722,433.80 - Step 4: Simplify right side
387,841,256.20x = 141,206,660,449,370,000 - Step 5: Solve for x
x = 141,206,660,449,370,000/387,841,256.20 - Step 6: Final answer
x = 364,083,650.70
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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.