Finding the Fourth Proportional to 4,247,290,576.80, 6,371,191,237.73 and 1,299,595,732.78
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Solution
The fourth proportional to 4,247,290,576.80, 6,371,191,237.73 and 1,299,595,732.78 is: 1,949,471,738.64
Step by Step Solution
- Step 1: Write the proportion equation
4,247,290,576.80 : 6,371,191,237.73 = 1,299,595,732.78 : x - Step 2: Convert to fraction form
4,247,290,576.80/6,371,191,237.73 = 1,299,595,732.78/x - Step 3: Cross multiply
4,247,290,576.80x = 6,371,191,237.73 × 1,299,595,732.78 - Step 4: Simplify right side
4,247,290,576.80x = 8,279,972,945,279,234,048 - Step 5: Solve for x
x = 8,279,972,945,279,234,048/4,247,290,576.80 - Step 6: Final answer
x = 1,949,471,738.64
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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.