Finding the Fourth Proportional to 2,590,758,328.46, 3,886,148,877.71 and 820,137,745.62
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Solution
The fourth proportional to 2,590,758,328.46, 3,886,148,877.71 and 820,137,745.62 is: 1,230,210,222.50
Step by Step Solution
- Step 1: Write the proportion equation
2,590,758,328.46 : 3,886,148,877.71 = 820,137,745.62 : x - Step 2: Convert to fraction form
2,590,758,328.46/3,886,148,877.71 = 820,137,745.62/x - Step 3: Cross multiply
2,590,758,328.46x = 3,886,148,877.71 × 820,137,745.62 - Step 4: Simplify right side
2,590,758,328.46x = 3,187,177,379,704,671,744 - Step 5: Solve for x
x = 3,187,177,379,704,671,744/2,590,758,328.46 - Step 6: Final answer
x = 1,230,210,222.50
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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.