Finding the Fourth Proportional to 7,542,138.48, 10,408,005.72 and 4,104,455.28
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Solution
The fourth proportional to 7,542,138.48, 10,408,005.72 and 4,104,455.28 is: 5,664,069.17
Step by Step Solution
- Step 1: Write the proportion equation
7,542,138.48 : 10,408,005.72 = 4,104,455.28 : x - Step 2: Convert to fraction form
7,542,138.48/10,408,005.72 = 4,104,455.28/x - Step 3: Cross multiply
7,542,138.48x = 10,408,005.72 × 4,104,455.28 - Step 4: Simplify right side
7,542,138.48x = 42,719,194,031,724.20 - Step 5: Solve for x
x = 42,719,194,031,724.20/7,542,138.48 - Step 6: Final answer
x = 5,664,069.17
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1.5x scale
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.