Finding the Fourth Proportional to 8,085,625.70, 12,128,438.55 and 7,424,276.90
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Solution
The fourth proportional to 8,085,625.70, 12,128,438.55 and 7,424,276.90 is: 11,136,415.35
Step by Step Solution
- Step 1: Write the proportion equation
8,085,625.70 : 12,128,438.55 = 7,424,276.90 : x - Step 2: Convert to fraction form
8,085,625.70/12,128,438.55 = 7,424,276.90/x - Step 3: Cross multiply
8,085,625.70x = 12,128,438.55 × 7,424,276.90 - Step 4: Simplify right side
8,085,625.70x = 90,044,886,159,834.50 - Step 5: Solve for x
x = 90,044,886,159,834.50/8,085,625.70 - Step 6: Final answer
x = 11,136,415.35
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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.