Finding the Fourth Proportional to 39,135,099.54, 54,000,578.95 and 22,387,176.21
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Solution
The fourth proportional to 39,135,099.54, 54,000,578.95 and 22,387,176.21 is: 30,890,951.87
Step by Step Solution
- Step 1: Write the proportion equation
39,135,099.54 : 54,000,578.95 = 22,387,176.21 : x - Step 2: Convert to fraction form
39,135,099.54/54,000,578.95 = 22,387,176.21/x - Step 3: Cross multiply
39,135,099.54x = 54,000,578.95 × 22,387,176.21 - Step 4: Simplify right side
39,135,099.54x = 1,208,920,476,395,667 - Step 5: Solve for x
x = 1,208,920,476,395,667/39,135,099.54 - Step 6: Final answer
x = 30,890,951.87
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.