Finding the Fourth Proportional to 7,677,149,781.60, 11,515,724,672.40 and 6,368,529,463.20
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Solution
The fourth proportional to 7,677,149,781.60, 11,515,724,672.40 and 6,368,529,463.20 is: 9,552,794,194.80
Step by Step Solution
- Step 1: Write the proportion equation
7,677,149,781.60 : 11,515,724,672.40 = 6,368,529,463.20 : x - Step 2: Convert to fraction form
7,677,149,781.60/11,515,724,672.40 = 6,368,529,463.20/x - Step 3: Cross multiply
7,677,149,781.60x = 11,515,724,672.40 × 6,368,529,463.20 - Step 4: Simplify right side
7,677,149,781.60x = 73,338,231,866,278,559,744 - Step 5: Solve for x
x = 73,338,231,866,278,559,744/7,677,149,781.60 - Step 6: Final answer
x = 9,552,794,194.80
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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.