Finding the Fourth Proportional to 6,331,607,999.20, 9,497,411,998.80 and 4,678,613,912.80
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Solution
The fourth proportional to 6,331,607,999.20, 9,497,411,998.80 and 4,678,613,912.80 is: 7,017,920,869.20
Step by Step Solution
- Step 1: Write the proportion equation
6,331,607,999.20 : 9,497,411,998.80 = 4,678,613,912.80 : x - Step 2: Convert to fraction form
6,331,607,999.20/9,497,411,998.80 = 4,678,613,912.80/x - Step 3: Cross multiply
6,331,607,999.20x = 9,497,411,998.80 × 4,678,613,912.80 - Step 4: Simplify right side
6,331,607,999.20x = 44,434,723,913,179,332,608 - Step 5: Solve for x
x = 44,434,723,913,179,332,608/6,331,607,999.20 - Step 6: Final answer
x = 7,017,920,869.20
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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.