Finding the Fourth Proportional to 2,631,879,847.60, 3,949,331,425.80 and 997,277,556.40
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Solution
The fourth proportional to 2,631,879,847.60, 3,949,331,425.80 and 997,277,556.40 is: 1,496,489,133.93
Step by Step Solution
- Step 1: Write the proportion equation
2,631,879,847.60 : 3,949,331,425.80 = 997,277,556.40 : x - Step 2: Convert to fraction form
2,631,879,847.60/3,949,331,425.80 = 997,277,556.40/x - Step 3: Cross multiply
2,631,879,847.60x = 3,949,331,425.80 × 997,277,556.40 - Step 4: Simplify right side
2,631,879,847.60x = 3,938,579,593,735,552,000 - Step 5: Solve for x
x = 3,938,579,593,735,552,000/2,631,879,847.60 - Step 6: Final answer
x = 1,496,489,133.93
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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.