Finding the Fourth Proportional to 5,742,647.55, 7,925,201.60 and 3,164,325.21
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Solution
The fourth proportional to 5,742,647.55, 7,925,201.60 and 3,164,325.21 is: 4,366,960.53
Step by Step Solution
- Step 1: Write the proportion equation
5,742,647.55 : 7,925,201.60 = 3,164,325.21 : x - Step 2: Convert to fraction form
5,742,647.55/7,925,201.60 = 3,164,325.21/x - Step 3: Cross multiply
5,742,647.55x = 7,925,201.60 × 3,164,325.21 - Step 4: Simplify right side
5,742,647.55x = 25,077,915,201,390.71 - Step 5: Solve for x
x = 25,077,915,201,390.71/5,742,647.55 - Step 6: Final answer
x = 4,366,960.53
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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.