Finding the Fourth Proportional to 4,918,782,463.20, 7,378,173,694.80 and 4,444,311,938.40
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Solution
The fourth proportional to 4,918,782,463.20, 7,378,173,694.80 and 4,444,311,938.40 is: 6,666,467,907.60
Step by Step Solution
- Step 1: Write the proportion equation
4,918,782,463.20 : 7,378,173,694.80 = 4,444,311,938.40 : x - Step 2: Convert to fraction form
4,918,782,463.20/7,378,173,694.80 = 4,444,311,938.40/x - Step 3: Cross multiply
4,918,782,463.20x = 7,378,173,694.80 × 4,444,311,938.40 - Step 4: Simplify right side
4,918,782,463.20x = 32,790,905,435,388,477,440 - Step 5: Solve for x
x = 32,790,905,435,388,477,440/4,918,782,463.20 - Step 6: Final answer
x = 6,666,467,907.60
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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.