Finding the Fourth Proportional to 28,135,285.20, 42,192,430.20 and 11,092,431.60
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Solution
The fourth proportional to 28,135,285.20, 42,192,430.20 and 11,092,431.60 is: 16,634,508.69
Step by Step Solution
- Step 1: Write the proportion equation
28,135,285.20 : 42,192,430.20 = 11,092,431.60 : x - Step 2: Convert to fraction form
28,135,285.20/42,192,430.20 = 11,092,431.60/x - Step 3: Cross multiply
28,135,285.20x = 42,192,430.20 × 11,092,431.60 - Step 4: Simplify right side
28,135,285.20x = 468,016,646,031,274.31 - Step 5: Solve for x
x = 468,016,646,031,274.31/28,135,285.20 - Step 6: Final answer
x = 16,634,508.69
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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.