Finding the Fourth Proportional to 20,734,709.48, 28,613,911.40 and 11,567,352.23
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Solution
The fourth proportional to 20,734,709.48, 28,613,911.40 and 11,567,352.23 is: 15,962,952.95
Step by Step Solution
- Step 1: Write the proportion equation
20,734,709.48 : 28,613,911.40 = 11,567,352.23 : x - Step 2: Convert to fraction form
20,734,709.48/28,613,911.40 = 11,567,352.23/x - Step 3: Cross multiply
20,734,709.48x = 28,613,911.40 × 11,567,352.23 - Step 4: Simplify right side
20,734,709.48x = 330,987,191,952,539.06 - Step 5: Solve for x
x = 330,987,191,952,539.06/20,734,709.48 - Step 6: Final answer
x = 15,962,952.95
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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.