Finding the Fourth Proportional to 209,953,756.80, 314,930,635.20 and 94,942,051.20
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Solution
The fourth proportional to 209,953,756.80, 314,930,635.20 and 94,942,051.20 is: 142,413,076.80
Step by Step Solution
- Step 1: Write the proportion equation
209,953,756.80 : 314,930,635.20 = 94,942,051.20 : x - Step 2: Convert to fraction form
209,953,756.80/314,930,635.20 = 94,942,051.20/x - Step 3: Cross multiply
209,953,756.80x = 314,930,635.20 × 94,942,051.20 - Step 4: Simplify right side
209,953,756.80x = 29,900,160,491,606,924 - Step 5: Solve for x
x = 29,900,160,491,606,924/209,953,756.80 - Step 6: Final answer
x = 142,413,076.80
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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.