Finding the Fourth Proportional to 5,535,399,917.07, 7,638,846,950.39 and 3,124,589,856.21
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Solution
The fourth proportional to 5,535,399,917.07, 7,638,846,950.39 and 3,124,589,856.21 is: 4,311,931,215.79
Step by Step Solution
- Step 1: Write the proportion equation
5,535,399,917.07 : 7,638,846,950.39 = 3,124,589,856.21 : x - Step 2: Convert to fraction form
5,535,399,917.07/7,638,846,950.39 = 3,124,589,856.21/x - Step 3: Cross multiply
5,535,399,917.07x = 7,638,846,950.39 × 3,124,589,856.21 - Step 4: Simplify right side
5,535,399,917.07x = 23,868,263,694,313,664,512 - Step 5: Solve for x
x = 23,868,263,694,313,664,512/5,535,399,917.07 - Step 6: Final answer
x = 4,311,931,215.79
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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.