Finding the Fourth Proportional to 8,430,358.86, 11,634,176.84 and 5,166,542.97
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Solution
The fourth proportional to 8,430,358.86, 11,634,176.84 and 5,166,542.97 is: 7,130,001.88
Step by Step Solution
- Step 1: Write the proportion equation
8,430,358.86 : 11,634,176.84 = 5,166,542.97 : x - Step 2: Convert to fraction form
8,430,358.86/11,634,176.84 = 5,166,542.97/x - Step 3: Cross multiply
8,430,358.86x = 11,634,176.84 × 5,166,542.97 - Step 4: Simplify right side
8,430,358.86x = 60,108,474,538,606.10 - Step 5: Solve for x
x = 60,108,474,538,606.10/8,430,358.86 - Step 6: Final answer
x = 7,130,001.88
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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.