Finding the Fourth Proportional to 858,620,567.70, 1,287,930,851.55 and 586,522,775.70
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Solution
The fourth proportional to 858,620,567.70, 1,287,930,851.55 and 586,522,775.70 is: 879,784,163.55
Step by Step Solution
- Step 1: Write the proportion equation
858,620,567.70 : 1,287,930,851.55 = 586,522,775.70 : x - Step 2: Convert to fraction form
858,620,567.70/1,287,930,851.55 = 586,522,775.70/x - Step 3: Cross multiply
858,620,567.70x = 1,287,930,851.55 × 586,522,775.70 - Step 4: Simplify right side
858,620,567.70x = 755,400,777,960,770,688 - Step 5: Solve for x
x = 755,400,777,960,770,688/858,620,567.70 - Step 6: Final answer
x = 879,784,163.55
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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.