Finding the Fourth Proportional to 18,442,905.70, 27,664,358.55 and 17,911,464.70
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Solution
The fourth proportional to 18,442,905.70, 27,664,358.55 and 17,911,464.70 is: 26,867,197.05
Step by Step Solution
- Step 1: Write the proportion equation
18,442,905.70 : 27,664,358.55 = 17,911,464.70 : x - Step 2: Convert to fraction form
18,442,905.70/27,664,358.55 = 17,911,464.70/x - Step 3: Cross multiply
18,442,905.70x = 27,664,358.55 × 17,911,464.70 - Step 4: Simplify right side
18,442,905.70x = 495,509,181,616,468.19 - Step 5: Solve for x
x = 495,509,181,616,468.19/18,442,905.70 - Step 6: Final answer
x = 26,867,197.05
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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.