Finding the Fourth Proportional to 48,525,900.80, 66,974,392.76 and 28,678,855.75
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Solution
The fourth proportional to 48,525,900.80, 66,974,392.76 and 28,678,855.75 is: 39,581,932.89
Step by Step Solution
- Step 1: Write the proportion equation
48,525,900.80 : 66,974,392.76 = 28,678,855.75 : x - Step 2: Convert to fraction form
48,525,900.80/66,974,392.76 = 28,678,855.75/x - Step 3: Cross multiply
48,525,900.80x = 66,974,392.76 × 28,678,855.75 - Step 4: Simplify right side
48,525,900.80x = 1,920,748,948,597,054 - Step 5: Solve for x
x = 1,920,748,948,597,054/48,525,900.80 - Step 6: Final answer
x = 39,581,932.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.