Finding the Fourth Proportional to 3,119,123.90, 4,670,812.65 and 2,048,368.70
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Solution
The fourth proportional to 3,119,123.90, 4,670,812.65 and 2,048,368.70 is: 3,067,382.62
Step by Step Solution
- Step 1: Write the proportion equation
3,119,123.90 : 4,670,812.65 = 2,048,368.70 : x - Step 2: Convert to fraction form
3,119,123.90/4,670,812.65 = 2,048,368.70/x - Step 3: Cross multiply
3,119,123.90x = 4,670,812.65 × 2,048,368.70 - Step 4: Simplify right side
3,119,123.90x = 9,567,546,435,824.06 - Step 5: Solve for x
x = 9,567,546,435,824.06/3,119,123.90 - Step 6: Final answer
x = 3,067,382.62
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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.