Finding the Fourth Proportional to 11,874,728, 16,387,156.32 and 6,442,220
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Solution
The fourth proportional to 11,874,728, 16,387,156.32 and 6,442,220 is: 8,890,280.79
Step by Step Solution
- Step 1: Write the proportion equation
11,874,728 : 16,387,156.32 = 6,442,220 : x - Step 2: Convert to fraction form
11,874,728/16,387,156.32 = 6,442,220/x - Step 3: Cross multiply
11,874,728x = 16,387,156.32 × 6,442,220 - Step 4: Simplify right side
11,874,728x = 105,569,666,187,830.41 - Step 5: Solve for x
x = 105,569,666,187,830.41/11,874,728 - Step 6: Final answer
x = 8,890,280.79
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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.