Finding the Fourth Proportional to 5,485,518.91, 8,231,641.55 and 2,455,446.81
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Solution
The fourth proportional to 5,485,518.91, 8,231,641.55 and 2,455,446.81 is: 3,684,675.66
Step by Step Solution
- Step 1: Write the proportion equation
5,485,518.91 : 8,231,641.55 = 2,455,446.81 : x - Step 2: Convert to fraction form
5,485,518.91/8,231,641.55 = 2,455,446.81/x - Step 3: Cross multiply
5,485,518.91x = 8,231,641.55 × 2,455,446.81 - Step 4: Simplify right side
5,485,518.91x = 20,212,357,980,319.21 - Step 5: Solve for x
x = 20,212,357,980,319.21/5,485,518.91 - Step 6: Final answer
x = 3,684,675.66
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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.