Finding the Fourth Proportional to 7,979,923.69, 11,012,364.62 and 4,542,385.75
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Solution
The fourth proportional to 7,979,923.69, 11,012,364.62 and 4,542,385.75 is: 6,268,532.14
Step by Step Solution
- Step 1: Write the proportion equation
7,979,923.69 : 11,012,364.62 = 4,542,385.75 : x - Step 2: Convert to fraction form
7,979,923.69/11,012,364.62 = 4,542,385.75/x - Step 3: Cross multiply
7,979,923.69x = 11,012,364.62 × 4,542,385.75 - Step 4: Simplify right side
7,979,923.69x = 50,022,408,090,483.27 - Step 5: Solve for x
x = 50,022,408,090,483.27/7,979,923.69 - Step 6: Final answer
x = 6,268,532.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.