Finding the Fourth Proportional to 19,905,102.60, 29,857,653.90 and 8,543,617.80
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Solution
The fourth proportional to 19,905,102.60, 29,857,653.90 and 8,543,617.80 is: 12,815,426.70
Step by Step Solution
- Step 1: Write the proportion equation
19,905,102.60 : 29,857,653.90 = 8,543,617.80 : x - Step 2: Convert to fraction form
19,905,102.60/29,857,653.90 = 8,543,617.80/x - Step 3: Cross multiply
19,905,102.60x = 29,857,653.90 × 8,543,617.80 - Step 4: Simplify right side
19,905,102.60x = 255,092,383,326,279.44 - Step 5: Solve for x
x = 255,092,383,326,279.44/19,905,102.60 - Step 6: Final answer
x = 12,815,426.70
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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.