Finding the Fourth Proportional to 17,420,154.20, 26,128,542 and 5,289,722.72
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Solution
The fourth proportional to 17,420,154.20, 26,128,542 and 5,289,722.72 is: 7,934,071.12
Step by Step Solution
- Step 1: Write the proportion equation
17,420,154.20 : 26,128,542 = 5,289,722.72 : x - Step 2: Convert to fraction form
17,420,154.20/26,128,542 = 5,289,722.72/x - Step 3: Cross multiply
17,420,154.20x = 26,128,542 × 5,289,722.72 - Step 4: Simplify right side
17,420,154.20x = 138,212,742,257,874.23 - Step 5: Solve for x
x = 138,212,742,257,874.23/17,420,154.20 - Step 6: Final answer
x = 7,934,071.12
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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.