Finding the Fourth Proportional to 17,420,219.16, 26,128,639.26 and 5,289,787.62
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Solution
The fourth proportional to 17,420,219.16, 26,128,639.26 and 5,289,787.62 is: 7,934,168.41
Step by Step Solution
- Step 1: Write the proportion equation
17,420,219.16 : 26,128,639.26 = 5,289,787.62 : x - Step 2: Convert to fraction form
17,420,219.16/26,128,639.26 = 5,289,787.62/x - Step 3: Cross multiply
17,420,219.16x = 26,128,639.26 × 5,289,787.62 - Step 4: Simplify right side
17,420,219.16x = 138,214,952,484,993.97 - Step 5: Solve for x
x = 138,214,952,484,993.97/17,420,219.16 - Step 6: Final answer
x = 7,934,168.41
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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.