Finding the Fourth Proportional to 7,922,202,272.40, 11,883,303,408.60 and 4,248,882,080.40
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Solution
The fourth proportional to 7,922,202,272.40, 11,883,303,408.60 and 4,248,882,080.40 is: 6,373,323,120.60
Step by Step Solution
- Step 1: Write the proportion equation
7,922,202,272.40 : 11,883,303,408.60 = 4,248,882,080.40 : x - Step 2: Convert to fraction form
7,922,202,272.40/11,883,303,408.60 = 4,248,882,080.40/x - Step 3: Cross multiply
7,922,202,272.40x = 11,883,303,408.60 × 4,248,882,080.40 - Step 4: Simplify right side
7,922,202,272.40x = 50,490,754,908,756,779,008 - Step 5: Solve for x
x = 50,490,754,908,756,779,008/7,922,202,272.40 - Step 6: Final answer
x = 6,373,323,120.60
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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.