Finding the Fourth Proportional to 7,547,920.20, 11,299,736.93 and 6,768,768.65
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Solution
The fourth proportional to 7,547,920.20, 11,299,736.93 and 6,768,768.65 is: 10,133,295.39
Step by Step Solution
- Step 1: Write the proportion equation
7,547,920.20 : 11,299,736.93 = 6,768,768.65 : x - Step 2: Convert to fraction form
7,547,920.20/11,299,736.93 = 6,768,768.65/x - Step 3: Cross multiply
7,547,920.20x = 11,299,736.93 × 6,768,768.65 - Step 4: Simplify right side
7,547,920.20x = 76,485,304,994,688.72 - Step 5: Solve for x
x = 76,485,304,994,688.72/7,547,920.20 - Step 6: Final answer
x = 10,133,295.39
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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.