Finding the Fourth Proportional to 5,335,081.72, 8,002,643.12 and 1,291,563.09
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Solution
The fourth proportional to 5,335,081.72, 8,002,643.12 and 1,291,563.09 is: 1,937,349.61
Step by Step Solution
- Step 1: Write the proportion equation
5,335,081.72 : 8,002,643.12 = 1,291,563.09 : x - Step 2: Convert to fraction form
5,335,081.72/8,002,643.12 = 1,291,563.09/x - Step 3: Cross multiply
5,335,081.72x = 8,002,643.12 × 1,291,563.09 - Step 4: Simplify right side
5,335,081.72x = 10,335,918,476,234.44 - Step 5: Solve for x
x = 10,335,918,476,234.44/5,335,081.72 - Step 6: Final answer
x = 1,937,349.61
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.