Finding the Fourth Proportional to 1,311,383,467.95, 1,966,859,737.66 and 470,852,212.06
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Solution
The fourth proportional to 1,311,383,467.95, 1,966,859,737.66 and 470,852,212.06 is: 706,200,955.65
Step by Step Solution
- Step 1: Write the proportion equation
1,311,383,467.95 : 1,966,859,737.66 = 470,852,212.06 : x - Step 2: Convert to fraction form
1,311,383,467.95/1,966,859,737.66 = 470,852,212.06/x - Step 3: Cross multiply
1,311,383,467.95x = 1,966,859,737.66 × 470,852,212.06 - Step 4: Simplify right side
1,311,383,467.95x = 926,100,258,288,962,304 - Step 5: Solve for x
x = 926,100,258,288,962,304/1,311,383,467.95 - Step 6: Final answer
x = 706,200,955.65
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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.