Finding the Fourth Proportional to 14,421,917,515.97, 19,902,363,028.09 and 7,991,844,902.25
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Solution
The fourth proportional to 14,421,917,515.97, 19,902,363,028.09 and 7,991,844,902.25 is: 11,028,810,720.39
Step by Step Solution
- Step 1: Write the proportion equation
14,421,917,515.97 : 19,902,363,028.09 = 7,991,844,902.25 : x - Step 2: Convert to fraction form
14,421,917,515.97/19,902,363,028.09 = 7,991,844,902.25/x - Step 3: Cross multiply
14,421,917,515.97x = 19,902,363,028.09 × 7,991,844,902.25 - Step 4: Simplify right side
14,421,917,515.97x = 159,056,598,508,769,935,360 - Step 5: Solve for x
x = 159,056,598,508,769,935,360/14,421,917,515.97 - Step 6: Final answer
x = 11,028,810,720.39
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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.