Finding the Fourth Proportional to 12,728,511.63, 19,070,489.21 and 8,671,830.75
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Solution
The fourth proportional to 12,728,511.63, 19,070,489.21 and 8,671,830.75 is: 12,992,568.14
Step by Step Solution
- Step 1: Write the proportion equation
12,728,511.63 : 19,070,489.21 = 8,671,830.75 : x - Step 2: Convert to fraction form
12,728,511.63/19,070,489.21 = 8,671,830.75/x - Step 3: Cross multiply
12,728,511.63x = 19,070,489.21 × 8,671,830.75 - Step 4: Simplify right side
12,728,511.63x = 165,376,054,705,462.03 - Step 5: Solve for x
x = 165,376,054,705,462.03/12,728,511.63 - Step 6: Final answer
x = 12,992,568.14
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.