Finding the Fourth Proportional to 245,855,251.20, 368,782,876.80 and 191,435,692.80
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Solution
The fourth proportional to 245,855,251.20, 368,782,876.80 and 191,435,692.80 is: 287,153,539.20
Step by Step Solution
- Step 1: Write the proportion equation
245,855,251.20 : 368,782,876.80 = 191,435,692.80 : x - Step 2: Convert to fraction form
245,855,251.20/368,782,876.80 = 191,435,692.80/x - Step 3: Cross multiply
245,855,251.20x = 368,782,876.80 × 191,435,692.80 - Step 4: Simplify right side
245,855,251.20x = 70,598,205,512,985,056 - Step 5: Solve for x
x = 70,598,205,512,985,056/245,855,251.20 - Step 6: Final answer
x = 287,153,539.20
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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.