Finding the Fourth Proportional to 7,886,430.70, 11,829,646.05 and 5,193,796.30
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Solution
The fourth proportional to 7,886,430.70, 11,829,646.05 and 5,193,796.30 is: 7,790,694.45
Step by Step Solution
- Step 1: Write the proportion equation
7,886,430.70 : 11,829,646.05 = 5,193,796.30 : x - Step 2: Convert to fraction form
7,886,430.70/11,829,646.05 = 5,193,796.30/x - Step 3: Cross multiply
7,886,430.70x = 11,829,646.05 × 5,193,796.30 - Step 4: Simplify right side
7,886,430.70x = 61,440,771,884,799.62 - Step 5: Solve for x
x = 61,440,771,884,799.62/7,886,430.70 - Step 6: Final answer
x = 7,790,694.45
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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.