Finding the Fourth Proportional to 5,448,331.78, 7,518,697.50 and 3,157,821.08
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Solution
The fourth proportional to 5,448,331.78, 7,518,697.50 and 3,157,821.08 is: 4,357,792.88
Step by Step Solution
- Step 1: Write the proportion equation
5,448,331.78 : 7,518,697.50 = 3,157,821.08 : x - Step 2: Convert to fraction form
5,448,331.78/7,518,697.50 = 3,157,821.08/x - Step 3: Cross multiply
5,448,331.78x = 7,518,697.50 × 3,157,821.08 - Step 4: Simplify right side
5,448,331.78x = 23,742,701,459,643.30 - Step 5: Solve for x
x = 23,742,701,459,643.30/5,448,331.78 - Step 6: Final answer
x = 4,357,792.88
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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.