Finding the Fourth Proportional to 20,204,295.12, 30,313,971.84 and 12,123,070.80
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Solution
The fourth proportional to 20,204,295.12, 30,313,971.84 and 12,123,070.80 is: 18,189,123.88
Step by Step Solution
- Step 1: Write the proportion equation
20,204,295.12 : 30,313,971.84 = 12,123,070.80 : x - Step 2: Convert to fraction form
20,204,295.12/30,313,971.84 = 12,123,070.80/x - Step 3: Cross multiply
20,204,295.12x = 30,313,971.84 × 12,123,070.80 - Step 4: Simplify right side
20,204,295.12x = 367,498,426,845,526.31 - Step 5: Solve for x
x = 367,498,426,845,526.31/20,204,295.12 - Step 6: Final answer
x = 18,189,123.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.