Finding the Fourth Proportional to 442,868,405.80, 664,302,608.70 and 328,077,149.80
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Solution
The fourth proportional to 442,868,405.80, 664,302,608.70 and 328,077,149.80 is: 492,115,724.70
Step by Step Solution
- Step 1: Write the proportion equation
442,868,405.80 : 664,302,608.70 = 328,077,149.80 : x - Step 2: Convert to fraction form
442,868,405.80/664,302,608.70 = 328,077,149.80/x - Step 3: Cross multiply
442,868,405.80x = 664,302,608.70 × 328,077,149.80 - Step 4: Simplify right side
442,868,405.80x = 217,942,506,467,000,704 - Step 5: Solve for x
x = 217,942,506,467,000,704/442,868,405.80 - Step 6: Final answer
x = 492,115,724.70
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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.