Finding the Fourth Proportional to 4,951,752.72, 7,429,767.12 and 2,678,878.08
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Solution
The fourth proportional to 4,951,752.72, 7,429,767.12 and 2,678,878.08 is: 4,019,473.79
Step by Step Solution
- Step 1: Write the proportion equation
4,951,752.72 : 7,429,767.12 = 2,678,878.08 : x - Step 2: Convert to fraction form
4,951,752.72/7,429,767.12 = 2,678,878.08/x - Step 3: Cross multiply
4,951,752.72x = 7,429,767.12 × 2,678,878.08 - Step 4: Simplify right side
4,951,752.72x = 19,903,440,277,272.73 - Step 5: Solve for x
x = 19,903,440,277,272.73/4,951,752.72 - Step 6: Final answer
x = 4,019,473.79
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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.