Finding the Fourth Proportional to 393,336,205.80, 590,004,308.70 and 240,281,197.80
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Solution
The fourth proportional to 393,336,205.80, 590,004,308.70 and 240,281,197.80 is: 360,421,796.70
Step by Step Solution
- Step 1: Write the proportion equation
393,336,205.80 : 590,004,308.70 = 240,281,197.80 : x - Step 2: Convert to fraction form
393,336,205.80/590,004,308.70 = 240,281,197.80/x - Step 3: Cross multiply
393,336,205.80x = 590,004,308.70 × 240,281,197.80 - Step 4: Simplify right side
393,336,205.80x = 141,766,942,001,596,976 - Step 5: Solve for x
x = 141,766,942,001,596,976/393,336,205.80 - Step 6: Final answer
x = 360,421,796.70
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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.