Finding the Fourth Proportional to 13,558,098.84, 18,705,624.44 and 7,676,929.20
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Solution
The fourth proportional to 13,558,098.84, 18,705,624.44 and 7,676,929.20 is: 10,591,584.87
Step by Step Solution
- Step 1: Write the proportion equation
13,558,098.84 : 18,705,624.44 = 7,676,929.20 : x - Step 2: Convert to fraction form
13,558,098.84/18,705,624.44 = 7,676,929.20/x - Step 3: Cross multiply
13,558,098.84x = 18,705,624.44 × 7,676,929.20 - Step 4: Simplify right side
13,558,098.84x = 143,601,754,499,431.09 - Step 5: Solve for x
x = 143,601,754,499,431.09/13,558,098.84 - Step 6: Final answer
x = 10,591,584.87
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.