Finding the Fourth Proportional to 1,889,571,028.80, 2,834,356,543.20 and 922,112,212.80
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Solution
The fourth proportional to 1,889,571,028.80, 2,834,356,543.20 and 922,112,212.80 is: 1,383,168,319.20
Step by Step Solution
- Step 1: Write the proportion equation
1,889,571,028.80 : 2,834,356,543.20 = 922,112,212.80 : x - Step 2: Convert to fraction form
1,889,571,028.80/2,834,356,543.20 = 922,112,212.80/x - Step 3: Cross multiply
1,889,571,028.80x = 2,834,356,543.20 × 922,112,212.80 - Step 4: Simplify right side
1,889,571,028.80x = 2,613,594,783,914,310,656 - Step 5: Solve for x
x = 2,613,594,783,914,310,656/1,889,571,028.80 - Step 6: Final answer
x = 1,383,168,319.20
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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.