Finding the Fourth Proportional to 219,026,133.20, 328,539,199.80 and 132,861,832.40
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Solution
The fourth proportional to 219,026,133.20, 328,539,199.80 and 132,861,832.40 is: 199,292,748.60
Step by Step Solution
- Step 1: Write the proportion equation
219,026,133.20 : 328,539,199.80 = 132,861,832.40 : x - Step 2: Convert to fraction form
219,026,133.20/328,539,199.80 = 132,861,832.40/x - Step 3: Cross multiply
219,026,133.20x = 328,539,199.80 × 132,861,832.40 - Step 4: Simplify right side
219,026,133.20x = 43,650,320,100,657,720 - Step 5: Solve for x
x = 43,650,320,100,657,720/219,026,133.20 - Step 6: Final answer
x = 199,292,748.60
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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.