Finding the Fourth Proportional to 12,172,717.84, 18,259,284.12 and 4,603,248.40
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Solution
The fourth proportional to 12,172,717.84, 18,259,284.12 and 4,603,248.40 is: 6,904,951.02
Step by Step Solution
- Step 1: Write the proportion equation
12,172,717.84 : 18,259,284.12 = 4,603,248.40 : x - Step 2: Convert to fraction form
12,172,717.84/18,259,284.12 = 4,603,248.40/x - Step 3: Cross multiply
12,172,717.84x = 18,259,284.12 × 4,603,248.40 - Step 4: Simplify right side
12,172,717.84x = 84,052,020,410,535.42 - Step 5: Solve for x
x = 84,052,020,410,535.42/12,172,717.84 - Step 6: Final answer
x = 6,904,951.02
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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.