Finding the Fourth Proportional to 399,104,510.10, 598,656,765.15 and 289,415,087.70
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Solution
The fourth proportional to 399,104,510.10, 598,656,765.15 and 289,415,087.70 is: 434,122,631.55
Step by Step Solution
- Step 1: Write the proportion equation
399,104,510.10 : 598,656,765.15 = 289,415,087.70 : x - Step 2: Convert to fraction form
399,104,510.10/598,656,765.15 = 289,415,087.70/x - Step 3: Cross multiply
399,104,510.10x = 598,656,765.15 × 289,415,087.70 - Step 4: Simplify right side
399,104,510.10x = 173,260,300,188,085,536 - Step 5: Solve for x
x = 173,260,300,188,085,536/399,104,510.10 - Step 6: Final answer
x = 434,122,631.55
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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.