Finding the Fourth Proportional to 19,898,124.20, 29,869,304.70 and 12,333,631.40
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Solution
The fourth proportional to 19,898,124.20, 29,869,304.70 and 12,333,631.40 is: 18,514,156.94
Step by Step Solution
- Step 1: Write the proportion equation
19,898,124.20 : 29,869,304.70 = 12,333,631.40 : x - Step 2: Convert to fraction form
19,898,124.20/29,869,304.70 = 12,333,631.40/x - Step 3: Cross multiply
19,898,124.20x = 29,869,304.70 × 12,333,631.40 - Step 4: Simplify right side
19,898,124.20x = 368,396,994,344,087.56 - Step 5: Solve for x
x = 368,396,994,344,087.56/19,898,124.20 - Step 6: Final answer
x = 18,514,156.94
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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.