Finding the Fourth Proportional to 2,218,315,258.40, 3,061,370,715.58 and 1,228,240,762.88
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Solution
The fourth proportional to 2,218,315,258.40, 3,061,370,715.58 and 1,228,240,762.88 is: 1,695,025,217.41
Step by Step Solution
- Step 1: Write the proportion equation
2,218,315,258.40 : 3,061,370,715.58 = 1,228,240,762.88 : x - Step 2: Convert to fraction form
2,218,315,258.40/3,061,370,715.58 = 1,228,240,762.88/x - Step 3: Cross multiply
2,218,315,258.40x = 3,061,370,715.58 × 1,228,240,762.88 - Step 4: Simplify right side
2,218,315,258.40x = 3,760,100,303,162,470,912 - Step 5: Solve for x
x = 3,760,100,303,162,470,912/2,218,315,258.40 - Step 6: Final answer
x = 1,695,025,217.41
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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.