Finding the Fourth Proportional to 8,319,997.20, 12,455,112.60 and 4,952,470.80
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Solution
The fourth proportional to 8,319,997.20, 12,455,112.60 and 4,952,470.80 is: 7,413,894.50
Step by Step Solution
- Step 1: Write the proportion equation
8,319,997.20 : 12,455,112.60 = 4,952,470.80 : x - Step 2: Convert to fraction form
8,319,997.20/12,455,112.60 = 4,952,470.80/x - Step 3: Cross multiply
8,319,997.20x = 12,455,112.60 × 4,952,470.80 - Step 4: Simplify right side
8,319,997.20x = 61,683,581,462,212.08 - Step 5: Solve for x
x = 61,683,581,462,212.08/8,319,997.20 - Step 6: Final answer
x = 7,413,894.50
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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.