Finding the Fourth Proportional to 667,307,537.70, 1,000,961,306.55 and 621,957,905.70
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Solution
The fourth proportional to 667,307,537.70, 1,000,961,306.55 and 621,957,905.70 is: 932,936,858.55
Step by Step Solution
- Step 1: Write the proportion equation
667,307,537.70 : 1,000,961,306.55 = 621,957,905.70 : x - Step 2: Convert to fraction form
667,307,537.70/1,000,961,306.55 = 621,957,905.70/x - Step 3: Cross multiply
667,307,537.70x = 1,000,961,306.55 × 621,957,905.70 - Step 4: Simplify right side
667,307,537.70x = 622,555,797,908,573,696 - Step 5: Solve for x
x = 622,555,797,908,573,696/667,307,537.70 - Step 6: Final answer
x = 932,936,858.55
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1.5x scale
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.