Finding the Fourth Proportional to 7,920,775,477.26, 10,919,747,938.28 and 6,318,668,167.47
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Solution
The fourth proportional to 7,920,775,477.26, 10,919,747,938.28 and 6,318,668,167.47 is: 8,711,049,049.74
Step by Step Solution
- Step 1: Write the proportion equation
7,920,775,477.26 : 10,919,747,938.28 = 6,318,668,167.47 : x - Step 2: Convert to fraction form
7,920,775,477.26/10,919,747,938.28 = 6,318,668,167.47/x - Step 3: Cross multiply
7,920,775,477.26x = 10,919,747,938.28 × 6,318,668,167.47 - Step 4: Simplify right side
7,920,775,477.26x = 68,998,263,694,374,404,096 - Step 5: Solve for x
x = 68,998,263,694,374,404,096/7,920,775,477.26 - Step 6: Final answer
x = 8,711,049,049.74
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1.5x scale
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.