Finding the Fourth Proportional to 21,572,280.45, 32,358,420.68 and 18,171,058.05
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Solution
The fourth proportional to 21,572,280.45, 32,358,420.68 and 18,171,058.05 is: 27,256,587.08
Step by Step Solution
- Step 1: Write the proportion equation
21,572,280.45 : 32,358,420.68 = 18,171,058.05 : x - Step 2: Convert to fraction form
21,572,280.45/32,358,420.68 = 18,171,058.05/x - Step 3: Cross multiply
21,572,280.45x = 32,358,420.68 × 18,171,058.05 - Step 4: Simplify right side
21,572,280.45x = 587,986,740,491,745.25 - Step 5: Solve for x
x = 587,986,740,491,745.25/21,572,280.45 - Step 6: Final answer
x = 27,256,587.08
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1.5x scale
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.