Finding the Fourth Proportional to 7,921,152,651.08, 11,881,728,976.62 and 7,921,152,651.08
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Solution
The fourth proportional to 7,921,152,651.08, 11,881,728,976.62 and 7,921,152,651.08 is: 11,881,728,976.62
Step by Step Solution
- Step 1: Write the proportion equation
7,921,152,651.08 : 11,881,728,976.62 = 7,921,152,651.08 : x - Step 2: Convert to fraction form
7,921,152,651.08/11,881,728,976.62 = 7,921,152,651.08/x - Step 3: Cross multiply
7,921,152,651.08x = 11,881,728,976.62 × 7,921,152,651.08 - Step 4: Simplify right side
7,921,152,651.08x = 94,116,988,982,508,158,976 - Step 5: Solve for x
x = 94,116,988,982,508,158,976/7,921,152,651.08 - Step 6: Final answer
x = 11,881,728,976.62
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Double scale
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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.