Finding the Fourth Proportional to 7,127,364,162.76, 9,831,288,612.39 and 4,228,463,491.99
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Solution
The fourth proportional to 7,127,364,162.76, 9,831,288,612.39 and 4,228,463,491.99 is: 5,832,625,361.55
Step by Step Solution
- Step 1: Write the proportion equation
7,127,364,162.76 : 9,831,288,612.39 = 4,228,463,491.99 : x - Step 2: Convert to fraction form
7,127,364,162.76/9,831,288,612.39 = 4,228,463,491.99/x - Step 3: Cross multiply
7,127,364,162.76x = 9,831,288,612.39 × 4,228,463,491.99 - Step 4: Simplify right side
7,127,364,162.76x = 41,571,244,976,667,492,352 - Step 5: Solve for x
x = 41,571,244,976,667,492,352/7,127,364,162.76 - Step 6: Final answer
x = 5,832,625,361.55
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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.