Finding the Fourth Proportional to 5,415,210.38, 8,122,752.94 and 1,316,554.70
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Solution
The fourth proportional to 5,415,210.38, 8,122,752.94 and 1,316,554.70 is: 1,974,816.83
Step by Step Solution
- Step 1: Write the proportion equation
5,415,210.38 : 8,122,752.94 = 1,316,554.70 : x - Step 2: Convert to fraction form
5,415,210.38/8,122,752.94 = 1,316,554.70/x - Step 3: Cross multiply
5,415,210.38x = 8,122,752.94 × 1,316,554.70 - Step 4: Simplify right side
5,415,210.38x = 10,694,048,560,095.82 - Step 5: Solve for x
x = 10,694,048,560,095.82/5,415,210.38 - Step 6: Final answer
x = 1,974,816.83
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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.