Finding the Fourth Proportional to 20,413,828, 28,170,752.34 and 11,121,509.08
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Solution
The fourth proportional to 20,413,828, 28,170,752.34 and 11,121,509.08 is: 15,347,502.58
Step by Step Solution
- Step 1: Write the proportion equation
20,413,828 : 28,170,752.34 = 11,121,509.08 : x - Step 2: Convert to fraction form
20,413,828/28,170,752.34 = 11,121,509.08/x - Step 3: Cross multiply
20,413,828x = 28,170,752.34 × 11,121,509.08 - Step 4: Simplify right side
20,413,828x = 313,301,277,939,741.25 - Step 5: Solve for x
x = 313,301,277,939,741.25/20,413,828 - Step 6: Final answer
x = 15,347,502.58
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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.