Finding the Fourth Proportional to 4,752,883.80, 7,128,450.90 and 2,952,545.40
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Solution
The fourth proportional to 4,752,883.80, 7,128,450.90 and 2,952,545.40 is: 4,428,274.66
Step by Step Solution
- Step 1: Write the proportion equation
4,752,883.80 : 7,128,450.90 = 2,952,545.40 : x - Step 2: Convert to fraction form
4,752,883.80/7,128,450.90 = 2,952,545.40/x - Step 3: Cross multiply
4,752,883.80x = 7,128,450.90 × 2,952,545.40 - Step 4: Simplify right side
4,752,883.80x = 21,047,074,913,920.86 - Step 5: Solve for x
x = 21,047,074,913,920.86/4,752,883.80 - Step 6: Final answer
x = 4,428,274.66
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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.