Finding the Fourth Proportional to 315,475,271.70, 473,212,907.55 and 261,727,559.70
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Solution
The fourth proportional to 315,475,271.70, 473,212,907.55 and 261,727,559.70 is: 392,591,339.55
Step by Step Solution
- Step 1: Write the proportion equation
315,475,271.70 : 473,212,907.55 = 261,727,559.70 : x - Step 2: Convert to fraction form
315,475,271.70/473,212,907.55 = 261,727,559.70/x - Step 3: Cross multiply
315,475,271.70x = 473,212,907.55 × 261,727,559.70 - Step 4: Simplify right side
315,475,271.70x = 123,852,859,511,603,200 - Step 5: Solve for x
x = 123,852,859,511,603,200/315,475,271.70 - Step 6: Final answer
x = 392,591,339.55
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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.