Finding the Fourth Proportional to 3,189,311,036.70, 4,783,966,555.05 and 1,958,488,431.90
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Solution
The fourth proportional to 3,189,311,036.70, 4,783,966,555.05 and 1,958,488,431.90 is: 2,937,732,647.85
Step by Step Solution
- Step 1: Write the proportion equation
3,189,311,036.70 : 4,783,966,555.05 = 1,958,488,431.90 : x - Step 2: Convert to fraction form
3,189,311,036.70/4,783,966,555.05 = 1,958,488,431.90/x - Step 3: Cross multiply
3,189,311,036.70x = 4,783,966,555.05 × 1,958,488,431.90 - Step 4: Simplify right side
3,189,311,036.70x = 9,369,343,156,661,919,744 - Step 5: Solve for x
x = 9,369,343,156,661,919,744/3,189,311,036.70 - Step 6: Final answer
x = 2,937,732,647.85
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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.