Finding the Fourth Proportional to 7,820,726,958.40, 11,731,090,437.60 and 2,912,763,035.20
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Solution
The fourth proportional to 7,820,726,958.40, 11,731,090,437.60 and 2,912,763,035.20 is: 4,369,144,552.80
Step by Step Solution
- Step 1: Write the proportion equation
7,820,726,958.40 : 11,731,090,437.60 = 2,912,763,035.20 : x - Step 2: Convert to fraction form
7,820,726,958.40/11,731,090,437.60 = 2,912,763,035.20/x - Step 3: Cross multiply
7,820,726,958.40x = 11,731,090,437.60 × 2,912,763,035.20 - Step 4: Simplify right side
7,820,726,958.40x = 34,169,886,589,229,469,696 - Step 5: Solve for x
x = 34,169,886,589,229,469,696/7,820,726,958.40 - Step 6: Final answer
x = 4,369,144,552.80
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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.