Finding the Fourth Proportional to 10,916,491.80, 16,374,737.70 and 6,664,963.80
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Solution
The fourth proportional to 10,916,491.80, 16,374,737.70 and 6,664,963.80 is: 9,997,445.70
Step by Step Solution
- Step 1: Write the proportion equation
10,916,491.80 : 16,374,737.70 = 6,664,963.80 : x - Step 2: Convert to fraction form
10,916,491.80/16,374,737.70 = 6,664,963.80/x - Step 3: Cross multiply
10,916,491.80x = 16,374,737.70 × 6,664,963.80 - Step 4: Simplify right side
10,916,491.80x = 109,137,034,004,995.25 - Step 5: Solve for x
x = 109,137,034,004,995.25/10,916,491.80 - Step 6: Final answer
x = 9,997,445.70
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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.