Finding the Fourth Proportional to 20,776,404.96, 28,671,582.96 and 11,609,434.08
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Solution
The fourth proportional to 20,776,404.96, 28,671,582.96 and 11,609,434.08 is: 16,021,099.56
Step by Step Solution
- Step 1: Write the proportion equation
20,776,404.96 : 28,671,582.96 = 11,609,434.08 : x - Step 2: Convert to fraction form
20,776,404.96/28,671,582.96 = 11,609,434.08/x - Step 3: Cross multiply
20,776,404.96x = 28,671,582.96 × 11,609,434.08 - Step 4: Simplify right side
20,776,404.96x = 332,860,852,343,371.31 - Step 5: Solve for x
x = 332,860,852,343,371.31/20,776,404.96 - Step 6: Final answer
x = 16,021,099.56
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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.